Shout "Hey!" and start making a comotion, and complain to the manager.
Shove the person, and tell them to move.
Ignore the situation and get in line behind them
Tell the person you forgive them, and take the spot behind them
Approach this person, and bring out the confession right away.
Come up to the person, and babble on a bit before actually telling the person what you did.
Tell the person how bad you feel, and how you'll make it up to them.
"So, I found this in your pocket." - wave it in his face - "Care to explain?"
"Hey sweetheart, I found this in your pocket, should I be concerned?"
Do nothing. He is a child for pete's sake. :)
Don't let her go, and take her on a BIG shopping day! (If guy is taking this:) You take her on a daddy daughter day, and let her pick out every where you go.
Talk to the other parents, and see if they are ok with this concept. If there is alchohol or drugs, or any other violence. Look up the neiborhood. Try and find out as much as you can, before letting her go.
Let her go! She is young. Full of energy!
Let her go, as long as you get to attend as well.
Tell them that stealing is wrong, and if no one admits the crime, give them all a swat.
Tell them that you are very disapointed in them, and if no one admits anything, ground them all.
Tell them that whoever admits the crime gets the 10$, but gets a swat.
Ignore the situation