At Town Hall, Nick Offerman brings his stand-up show “Big Woodchuck” to a room better known for speeches and song than punchlines. The set leans on his public persona—deadpan, workmanlike, skeptical of easy sentiment—while tracing the gap between the actor people recognize and the private citizen doing the talking. The evening reads as a live document of contemporary American humor, shaped by craft, politics, and domestic life. Offerman’s restraint often does more work than the jokes themselves.