
There's the coy SMILE.
The Big Bang Theory Season 7, Episode 7

Or normal words
followed by a charming SMILE.
The Big Bang Theory Season 7, Episode 19

and I was taught to SMILE
Game of Thrones Season 2, Episode 9

Gives me a little SMILE like, "Well?"
Game of Thrones Season 6, Episode 2

Or a brother's SMILE?
Game of Thrones Season 1, Episode 9