Bay seniors with their eyes on their own biological clocks will appreciate learning a new talent in a single evening. This Friday for example there is a one-night ukelele workshop at 6pm in lower Pac Heights where you will learn enough basics to entertain your guests at your next luau. Pick up the skills to hold the instrument properly and read chord charts. $30. If you can’t make it you can check out teacher Cynthia Lin’s lessons on YouTube.