-he's new. -he's a new barista. -he hasn't learned everything yet. -he's very focused on getting the orders right. -he's hands sometimes shakes violently. -he has Essential tremor. -he doesn't like when he begins to shake. -he tries to ignore his shaking when he can feel it coming. -he gets shy when he begins to shake. -he doesn't want anyone to see his shaking. -he always changes topics when someone asks why his hands sometimes shakes so violently. -he sometimes shakes violently.