What does the body language tell me?

I was in an Apple store today and I was bent down on the counter trying out the iPhone 5. My sister went off to check out something else. A few minutes after, I straightened up and turned around and there was 2 boys staring at me with sly smiles on their faces. They didn't look away when I looked at them or anything. I felt awkward, so I just turned away quickly and followed my sister.
This incidence isn't important, but I it wouldn't hurt to know what it means for future reference, I guess, haha.

It means you should post some pix.