Actually a whole minute is hard for Shawn. He's never been someone to sit still and do nothing. Only if it was for a case. And even then it didn't work out most of the times.

However, when Gus leans in he gets very still. Mostly because he's trying to figure out what his friend is doing. He can hear him breath, deeply, but that's it.

"Dude, what are you doing?" Gus never included 'Don't talk' after all.