Five hundred reasons to smile.
What: The long-awaited Roman trattoria debuts with a grand glass staircase, illuminated onyx bar, and classic comfort dishes like borlotti bean soup, wild boar gnocchi, and porchetta arrosto.
Why: More than twenty Italian wines by the glass, copious Campari cocktails, and free parking.
When: Opens Fri. Sun.-Wed., 4 p.m.-midnight; Thurs.-Sat., 4 p.m.-1 a.m.
Where: 500 Harrison Ave., South End (617-338-9500).
Puritan & Company
What: Pop-up provocateur Will Gilson puts down roots in a modern-rustic beaut that entices with reimagined New England fare, like bone marrow gratin, wood-roasted Muscovy duck, and roasted cobia.
Why: Start with charcuterie and oysters; end with one more glass of wine.
When: Opens Fri. Daily, 5-11 p.m.
Where: 1166 Cambridge St., Inman Square (617-615-6195).
Local Is for Lovers Holiday Market
What: Stand by your antimall convictions and browse jewelry, clothing, foodstuffs, and art from more than 30 Somerville artisans (Albertine Press, Blue Helix Designs, Spindler Confections), plus gift cards from restaurants.
Why: Kid-friendly bands and activities mean one less holiday meltdown — although there’s craft beer just in case.
When: Sun., 11 a.m.-5 p.m.
Where: Arts at the Armory, 191 Highland Ave., Somerville (617-718-2191).
Pop It like It’s Hot
What: Quit shivering with piping-hot cups of Taza chocolate in gourmet flavors like maple bacon, meringue brulee, and ginger white chocolate.
Why: Pay what you want, with all proceeds going to the Home for Little Wanderers.
When: Thru Dec. 21. Fri., 3-6 p.m.
Where: Revere Hotel Boston Common, 200 Stuart St., in the lobby, Theatre District (617-482-1800).
Patch NYC Trunk Show with Veronica Moore
What: The New York jeweler lengthens your holiday wish list with drop earrings, chunky cocktail rings, and dramatic collar necklaces fashioned from semiprecious jewels and sculpted metals.
Why: One-night-only store discounts quickly end your gifting duties.
When: Today, 3-9 p.m.
Where: 46 Waltham St., South End (617-426-0592).
We Can Be Heroes
What: Bust out your best Black Widow roundhouse kick at Bella Luna’s superhero-themed birthday party with tunes from DJs Brent Covington and Stella.
Why: Brush out that Hit-Girl wig — best costume wins 75 smackaroos.
When: Fri., 9 p.m.
Where: 284 Amory St., Jamaica Plain (617-524-6060). Event is free.
Photo: Courtesy of Cinquecento