it depends if you like then back if you do first make sure its not a joke look at body expression and make sure theres no wide smile second if its real tell them you like them too but say it sweet and make sure it sounds real but if you dont like them say your flattered but you dont have those feeling yet.
When someone says congratulations to you, or when someone congratulates you, say, "Thank you".
if someone says your funny just say lol i know. lol get you out of everything.
The same thing you say when someone says "you're welcome" - nothing.
It is called sarcasm when someone says the opposite of what you say in a mocking or ironic way.
say 'ok'
What to say when someone says afwan
You say: How to you say It someone says: IT you say: no I....T
you could say Thank You
Say "Thank You".
You say 'You're Welcome'
i say that they are lying
Say "No."