When Patrick Jane points out that Mr. Mc Tierney's corpse has a black eye and the camera does a close up shot, you can see the actors' closed eye moving.
Patrick incorrectly calls the initials "P.T.A." and "A.C.L.U." acronyms. Properly defined, acronyms are when a series of letters that are abbreviations form a pronounceable word, like sonar, radar, and BASIC. The two examples used by Patrick would be properly called abbreviations or initialisms.