What should I do

[DownTownTonyBrown]

I'm with Chuck E. Thank him but don't appologize unless you did something more out-of-line than what you have shared with us.

Believe me, at 16 years old, you will get far worse reprimands and they will be during a real game with a crowd and the coach for whom you are working rather than a volunteer shadow. Then you will feel like you are on the spot.

Kill'em with kindness. Smile. Even tell him he was right and that you have been working on standing up straight and moving your feet. That will make him feel good and will probably put you back into his good graces.

Forget about the Shut-ups. Move on man. You've got a lot of life and officiating left to do. Based upon what you have said and everyone's responses, we are all expecting great things from you!