From "Nash Bridges: Internal Affairs (#2.1)"
So, Evan, when you actually catch a thief, how can you tel if he's actually telling the truth?
Insp. Evan Cortez
Ah, I don't know, I guess it comes from experience, wouldn't you say, Harv'? when you learn to read body language, you know, the look in somebody's eye, the tone of their voice, the small gesture, that kind of thing... give a lot away.
Insp. Harvey Leek
Oh, yeah. Yeah, sometimes the signals are so obvious you'd have to be a fool to miss 'em.
[as Evan is oblivious to the strong signals of attraction Cassidy is sending