"LOL. Smiley face."
The Big Bang Theory Season 7, Episode 19
If you want to talk more, I'm always available."
Smiley face, SMILEY face.
The Big Bang Theory Season 6, Episode 8
Thank you for carving a SMILEY face
in my sandwich.
The Big Bang Theory Season 3, Episode 1
And then there's an animated SMILEY face
raising the roof like this...
The Big Bang Theory Season 9, Episode 10
of a SMILEY face sticker
on your homework.
The Big Bang Theory Season 5, Episode 11