Myself as well... However I only really pay attention to how they developed the pattern of choice and what they did to manipulate the CB. Assuming if they didn't something out of the ordinary.same with me, and of course i will re-watch some shots multiple times
for example where exactly did the ball go
how still is the head, sholder, elbow, cue tip after delivery
can i see their eyes
how did it sound
was the pre shot routine any different
where did the cue tip strike the cue ball
the timing, etc etc