What is a call to action (CTA)?
Also called CTA.
A call to action is the part of a post that tells people the next step to take, such as book now, comment below, or tap the link in bio.
Why it matters
Without one, people who like a post often do nothing. One clear CTA per post works better than several competing ones.
Example
"Comment 'menu' and we'll send you this week's specials" turns a food photo into a conversation.