
...and did so
using a stern FACIAL expression.
The Big Bang Theory Season 4, Episode 24

Forgive me.
I'm not adept at reading FACIAL cues.
The Big Bang Theory Season 3, Episode 4

I'm not the best at reading FACIAL cues,
but I can see that you're a little turned on.
The Big Bang Theory Season 8, Episode 8

...not only about what one says, but about
FACIAL expressions, autonomic reflexes.
The Big Bang Theory Season 2, Episode 1

I merely offer you a FACIAL expression
that suggests you've gone insane.
The Big Bang Theory Season 3, Episode 12