Depends on the person I'm smiling at O_O
The sweetest for her, of course ;)
Never bitter. Sweet or sad or neutral.
Lol... angelic is what some people see. It is not an emotion I feel. :P
Sweet. Then there are my eyes. Sometimes sweet as well.
I try to make them enigmatic.
depends how i'm using said smile
Smiling automatically washes away any bitterness I might have been feeling. I honestly don't know how people can fake a real looking smile.