Telling someone to smile doesn’t make them want to smile.

Yeah, that seems to be true with other things too, like telling someone to go f*** off... normally it doesn't work, as they don't do it.

But smiles are pretty.

I know no other expression (ANE) ✊🏽

I don't think I tell people to smile

i've overheard retail employees being told by their boss: it's their job to smile for customers.

total nonsense 🙄