I always thought it was: the first two, Val and Tom, had to think about it and do a little pondering before saying yes. They get to Trejo and he doesn't need to think, says yes right away. The laughter by the others that follows shows that they were humored by his instant, no thought, yeah I'm in attitude compared to themselves.@billt460 I have a question.
During the scene where Neal is presenting to his crew the bank job, and an "are you in, or are you out" proposition. The audience sees very thoughtful close up affirmative responses from Chris and Michael. Very thoughtful deliberation and discussion with Neal. Then, oddly, the camera pulls back and Trejo says, "yeah, I'm in." Very unconvincing.
The way he is nervously looking around at the pay phone never led me to think he was backing out.
**After reading posts earlier today, I had to watch it again! Just finished about an hour ago.