Pizza.
What is one word that would put a smile on people's faces? I would say Puppies.
Ice Cream
Disneyland :)
Sex!
Now the smile could be ambiguous! Lol!
I would have to agree with puppies. Though my husband has a different definition than small furry pets, yet it will still make him smile. ;-)
I agree ...puppies. If you look in the mirror and mouth the word the resulting facial movement leaves the lips in a smile- prone position.