@emer One way to do it is (I read this somewhere on 365 and it helped) is to hold your camera so that people think you're checking your photos on the lcd screen, when really you're taking shots.
I'm always taking tons of stuff out of my purse trying to find things. My purse is kind of like the clown car gag...has more stuff in it than should be possible. Great shot...many of us can relate to the search.