In Summer League, it is the subtle things that get a coach’s attention. The kind of things that tell a coach and a team that this player can fill a role and work hard, doing the thankless work of playing in practice with little promise of playing in a game.
They want the guys who push everyone on the roster and work their way up the food chain and onto the main roster. These are not players who are guaranteed anything. They will end up working in anonymity for the most part.
Then again, sometimes it is staring you straight in the face.