Comment keyword examples: 20 ideas by industry

Every comment-to-DM campaign hangs on one word. The post can be great and the DM can be perfect, but if the word you ask for is vague, long or awkward to type, people read the caption, hesitate for half a second and keep scrolling.
This article is about choosing that word. You will find a few simple rules, the words that quietly break campaigns, and 20 comment keyword examples by industry, each paired with the opening line of the DM it should send.
In short:
- One short word that names the thing people receive.
- Ask for it at the very top of the caption.
- Avoid vague words, brand names, codes, and words that hide inside other words.
- Test two candidates and keep the one people actually type.
Why one word carries the whole campaign
Comment-to-DM can fail before anything is sent. The weak point is the moment a viewer reads your call to action and decides whether commenting is worth it. If the word is obvious, the decision costs nothing. If they have to work out what to type or what happens next, most of them won't bother.
If the mechanics are new to you, the comment-to-DM guide explains what happens between the comment and the DM.
Four rules for a good comment keyword
Keep it to one word. People comment with a thumb, often while doing something else. PRICE is easy. "Please send me the price list" is a sentence nobody wants to type.
Name the reward. GUIDE should deliver a guide, MENU a menu, TOUR a viewing slot. When the word matches what arrives, nobody is unsure about commenting and nobody is surprised by the DM.
Ask early. The first line of a caption is often the only line people see before "more". Put the keyword there, and on the image or in the opening seconds of the video if you can.
Make it hard to misspell. Plain, common words beat clever ones. If you can picture someone getting it wrong, pick another word.
Good keyword vs bad keyword
| Weak choice | Why it fails | Stronger choice |
|---|---|---|
INFO | Says nothing about what arrives | PRICES |
INTERESTED | Long, vague, easy to misspell | DETAILS |
YES | Appears in ordinary comments all the time | JOIN |
| Your brand name | Feels like typing an ad | SAMPLE |
SPRING26 | Codes and numbers get mistyped | SPRING |
SEND ME THE LINK | Every extra word loses people | LINK |
The trap of words inside words
Keyword matching is case insensitive and checks whether the comment contains the word. That is handy, because "menu pls" still matches MENU. It also means a short keyword can fire on longer words: BOOK matches "Facebook" and "notebook", LIVE matches "olive" and "delivery". Before you settle on a keyword, think of the everyday words that contain it, and limit the trigger to the posts that ask for it.
There is more on matching, overlaps and priority in our keyword triggers guide.
20 comment keyword examples by industry
Each line pairs a keyword with the start of the first DM. Notice the pattern: the DM answers right away, then asks for one small next step. The prices and details are placeholders, swap in yours.
| # | Business | Keyword | First line of the DM |
|---|---|---|---|
| 1 | Jewellery maker | PRICE | "The silver hoops are $62 and ship within 3 days. Here they are: [link]" |
| 2 | Fashion boutique | SIZES | "The wrap skirt is available in XS to L. Which size do you usually wear?" |
| 3 | Online store | LINK | "Here's the exact product page: [link]. Any question before you order?" |
| 4 | Business coach | GUIDE | "Here's the pricing guide: [link]. Want a short call to apply it to your offer?" |
| 5 | Personal trainer | PLAN | "Your 5-day starter plan: [link]. Tell me how day one went." |
| 6 | Course creator | WAITLIST | "You're on the list. Enrolment opens in two weeks, and the waitlist hears first." |
| 7 | Restaurant or café | MENU | "Tonight's menu is here: [link]. Kitchen is open until 22:30." |
| 8 | Bakery | PREORDER | "This Saturday: sourdough, cinnamon buns and lemon tart. Order here: [link]" |
| 9 | Hair or beauty salon | SLOTS | "This week's openings are here: [link]. Which day suits you?" |
| 10 | Photographer | DATES | "Packages and free dates are here: [link]. When is your event?" |
| 11 | Real estate agent | VIEWING | "Two bedrooms, balcony, 85 m². Pick a viewing time here: [link]" |
| 12 | Car dealer | TESTDRIVE | "Still available at $18,400. Book a test drive here: [link]" |
| 13 | Event organiser | TICKETS | "Early-bird is $25 until Sunday. Your link: [link]" |
| 14 | Handmade seller | CUSTOM | "Choose colour, size and engraving here: [link]. I confirm every order personally." |
| 15 | Renovation or trades | QUOTE | "Kitchen refits start from $4,000. Send three photos and I'll price yours." |
| 16 | Author | CHAPTER | "Here's chapter one: [link]. Tell me what you think of the ending." |
| 17 | Florist | FLOWERS | "Seasonal bouquets from $40, same-day delivery in town: [link]" |
| 18 | Dental or wellness clinic | CHECKUP | "Next week's free check-up times: [link]. Which one should we hold?" |
| 19 | Agency running a client campaign | The campaign word, e.g. GLOW | "Here's this week's offer: [link]. It ends Friday." |
| 20 | Webinar host | WEBINAR | "You're registered: [link]. Save the date, we start Thursday at 18:00." |
On Facebook Pages the same keywords work for comments too. And when your audience prefers stories, a story reply with the same word can send the same DM, see story reply automation.
Copy-paste setup: one keyword, start to finish
Here is a complete flow for a florist posting an autumn bouquet. Change the words, keep the shape.
- Trigger: comment keyword
FLOWERS, limited to this one post - First DM (one message, complete):
Hey {{first_name}}, here are this week's autumn bouquets: https://yourshop.com/autumn
They start at $40, with same-day delivery in town if you order before noon.
Is this for a gift or for your own table?
- Public reply variants (one is picked at random each time):
{{username}} sent, check your DMs,Just sent you the bouquets,In your inbox now. The{{username}}variable tags the person who commented. - Tag:
flowers-autumn, so you can find everyone who asked later
On Instagram comment DMs, {{first_name}} reads "there", because Instagram only shares the commenter's handle. "Hey there" still reads naturally, which is why the line is written that way.
Where the keyword should appear
- The first line of the caption: "Comment FLOWERS and I'll DM you the bouquets"
- On the image, or written on screen in the first seconds of a reel
- In stories, as "Reply FLOWERS for the link"
- In a pinned comment, when the caption runs long
How to test two keywords
Run two candidates on two similar posts, for example PRICE on one product photo and LINK on another. In Chat33, each flow shows how many times it was triggered and how many people clicked the link, so you can compare both numbers side by side. Keep the winner and test it against the next idea. If you want a method for this, A/B testing DM flows walks through it.
The habit that erodes trust
Using one keyword for several different promises. If PRICE sends a price on Monday and a discount code on Thursday, followers stop knowing what to expect. Give each keyword one meaning and keep it. When a campaign ends, retire its word so old posts don't keep sending outdated offers.
Summary
Choose one short word that names exactly what people receive, put it in the first line of the caption, and back it with a DM that answers and offers one next step. Check that it doesn't hide inside everyday words, test it against a second candidate, and keep the one your audience actually types. When you're ready to run it, the free plan on the pricing page covers one channel and three flows.
FAQ
Should the comment keyword be in capitals?
Matching ignores case, so flowers, Flowers and FLOWERS all trigger the same flow. Writing it in capitals in your caption simply makes it stand out, which helps people notice it.
Can I use the same keyword on several posts?
Yes, as long as it means the same thing everywhere. If two flows listen for the same word on the same post, the person would get two DMs, so give each live campaign its own word or limit each trigger to its own posts.
What if someone misspells the keyword?
The flow will not fire for a misspelled word, which is why short, common words work best. You can see those comments in your inbox and reply by hand.
How many keywords should one account run?
Start with one per offer you actively promote, usually two or three. More than that and your followers struggle to remember which word does what.
Comment keywords in Chat33Keyword triggers per post, private replies on the official Instagram API, random public replies and tracked links in one flow.