Pam: Is he puffing out his chest?
Dwight K. Schrute: I can't tell. It's unnaturally sunken. [Jim says something and Cathy laughs] Busted. He just was mirroring. Did you see that?
Pam: No. Maybe he just said something funny.
Dwight K. Schrute: Jim has no discernible sense of humor, Pam. You should know that.