The game starts here but I am not sure what to do? The button only restarts. I check your buttons comment too. 
I can take selfies :)3 days ago(+1)
The red circle with the slider is actually your drama meter. In the football practice scene, Kamir is meant to stay away from Greenita, Stephen, and Gertrude's drama. If he goes near them, the NPCs will distance themselves, but if he engages in the conversation, the drama meter fills up. The goal is to kick the ball into the goal, and then press the continue button, which takes you to the next scene. (And no worries on the selfies—that's just the character looking at the screen!)