"You want my picture?"

In the US, if you are annoyed that someone is discourteously staring at you, you would aggressively turn to that person and demand, in the most threatening tone you can muster, "what are you looking at?"

I learned that in France, what they say in this very same situation is somewhat less threatening - they say "tu veux ma photo, quoi?" - translation: "what, you want my picture?"

Speaking of, here is a recent one of the girls. You may stare all you want.