By Evan Dawson, Finger Lakes Editor There is so much to learn from a single night of tending bar. On a recent Saturday, I was one of several bartenders for a charity fundraiser in Rochester. It was a farm-to-table event put together by the fine folks at Breathe Yoga, and it featured local food and all Finger Lakes wines. I recruited the wine donations, then tended bar myself. Here's what I learned. 1. People like red wine, and Finger Lakes reds are plenty passable for the masses I divided the red wines into two main groups: lighter-bodied reds (mostly pinot…