
This calls for an
EXPRESSION of gratitude.
The Big Bang Theory Season 5, Episode 20

...I look at you with an EXPRESSION
of exhaustion...
The Big Bang Theory Season 3, Episode 17

What exactly does that EXPRESSION mean,
"friends with benefits"?
The Big Bang Theory Season 2, Episode 21

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

Funny EXPRESSION, sleep tight. Ha-ha. Ha.
The Big Bang Theory Season 1, Episode 7