Hi @alinakhan39667 and welcome to the forums.
If you have a quick look around, or do a forum search, you’ll find plenty of information on this subject, as it’s been discussed here many times before. We have an active discussion on this very topic right now, so to avoid duplicating the discussion, I’d like to invite you to come and join in here:
How to get more likes on facebook
(And I’ll close this topic, to avoid confusion.)