DECEMBER 5

The mad crush of holiday festivities has begun — and what better way to kick it off than at a Champagne social at Tremont 647 (647 Tremont Street, Boston)? On December 5, from 6 to 9 pm, the South End restaurant holds the first-annual event, which will feature appetizers and Champagne, plus demonstrations and recipes. The cost is $40; call 617.266.4600 ext. 13 for reservations and information.