Yeah, that's the SMILE I'm gonna remember
when you're living in the desert,
The Big Bang Theory Season 10, Episode 1
There's the coy SMILE.
The Big Bang Theory Season 7, Episode 7
Smile.
The Big Bang Theory Season 11, Episode 16
Just nod and SMILE, he's almost gone.
The Big Bang Theory Season 10, Episode 4
Smile!
The Big Bang Theory Season 11, Episode 9