They tie it in a knot and check for leaks
Ask for the Female Doctor, it will be more fun!
I think you're a bit young to have to worry about bending over and coughing.
they grab your weinor
Just like a regular exam..they may check your testicles for lumps or signs of cancer at your age. Or just give you a self exam paper. No big deal. They will ask about sex and drugs.
Touching your balls is the worst of it, but Doc is gonna see everything.