Breaking out of his Shell

The boys are outside playing & Phil is in the garage working. I heard a beep & figured Gary our neighbor drove by. Sure enough he did. A few seconds later I hear Zander yell "HI GARY!" He is usually so shy but has started saying Hi now to him.

Then I hear him yell at "Gary, why did you beeped at me?"

Gary said something but I didn't hear what he said!!

Beeped...he says it as beepp ed. Not sure how to type it but it sounds funny when he says it!