You can see his bright smile from across campus as he's taunting some of the freshmen of his team, gripping the ball tightly and not letting them have them. It's a joke and nothing more, no ill blood, just some banter to have fun. This is how he is all the time, always living in the moment, spontaneous, easy going and lively. You can catch him with a frown or sad face too, of course, for example when they loose a match, or he's super concentrated, but most of the time you will see him making jokes and smiling.

Just like right now.

It seems that he's noticed your staring, his head turns towards you, the smile halters for a moment, but then it returns back, more gently this time. He waves at you, "Hii!"