Every so often I see these little spiders on a building. They usually run away as I walk up to look at them. This time, I managed to slip my hand in the spiders path and briefly block it's escape.

It's a shy Menemerus bivittatus spider, I think, (always double check your sources!) and I haven't seen it do anything yet except run away from me.

Update: I caught it eating a tiny moth:

The spider got upset when I got too close while taking pictures of it enjoying its meal, and it dropped the moth.  It's a very small moth!  In this photo it's sitting in the palm of my hand.  It's an odd angle, but I wanted to show the un-cropped photo as well to illustrate how very small this little brown moth is.