I make a point to move through quickly. I've even turned off flashing lights at night just to try to get by undetected.

When it comes to little ones, I like to be freindly with them. They are the ones who will grow up in a few years and be most likely to be trouble, so best to "raise" them right to begin with.

Otherwise, if I have to interact, like if there is a bunch of them taking up the MUP, I always say "Excuse me" and then thank them when the let me through.

So far, no problems.