I smile almost every response to my questions that i have read and that isnt too lame or retarded. If i smile other replies ive found them funny, interesting or relatable.
What kind of responses do you smile? I couldn't recognize a clear pattern yet

I smile all answers to my question to let them know I read them. Except the ones I find it to disrespectful in some way tbh. If I'm smiling an answer from the general feed is because I can relate, I share the same opinion or I find it funny and witty

Funny

He says, “yes”when I ask if he’s vacuumed.

Funny. Well thought out. Passionate. Well written.

Also smiles usually.

Insightful ones or funny ones or ones with other special qualities that I think are unusual in a good and probably subtle way.

If we're pertaining to the responses i get from my questions, i'd usually smile at all of them just to acknowledge their answers regardless if I actually liked it or not. But if it's from other people's questions, i tend to smile on the sensible ones and those witty responses.

Answers to my questions, answers that I can relate or funny answers