Of all the days to not have my macro lens...

This is a new spider for me. Small, approximately 2-3 mm or so in body length, bright yellow to yellow-orange abdomen, shiny dark black or reddish-black otherwise, the front legs had bright white tips, and the chelicerae seemed fairly large for its size (although I might have been seeing mostly the pedipalps which were also large. It was hard to tell with such a tiny, constantly moving critter, lacking magnification at the time.)

Periodically tapped its front legs ahead like antenna or walking canes. Found about chest-high on the side of a shed.