This looks like fun: Providence, R.I.'s What Cheer? Marching Brigade brings a real-deal marching band experience to CALS Children's Library, 4:30 p.m., free.
The Joint hosts a Finch's Beer tasting from 6-8 p.m., $10. Stick around afterward for a meeting of Skeptics in the Pub, who'll shatter all of your dearly held superstitions and myths.