Hungry for action? Here’s some hearty beers, lip-smackin’ tunes, and killer sample sales that will keep you filled. Go on. Unbutton that fly.

HEAR
Housing Works Benefit
What: Nervy rapper Buck 65, rocker Brendan Benson, goth band Blanche, and alt-country hero Buddy Miller ditch CMJ for a good cause.
Why: Play hookey. You deserve it.
When: Fri. 2 p.m.-9 p.m.
Where: Housing Works Used Book Cafe, 126 Crosby St., b/t Houston and Prince Sts. (212-334-3324).

DO
Beer on the Pier
What: More than 200 brews for the sipping at a waterfront beer garden.
Why: Beer on the pier = mirth on the berth.
When: Sat. 1 p.m.-9 p.m.
Where: Hudson River Park, Pier 54, at 14th St., at West Side Highway (212-613-3158).

EAT
Barmarche
What: New Euro eatery filling Cafe Lebowitz’s shoes.
Why: Since when do you need a reason to be first?
When: Opens today.
Where: 14 Spring St., at Elizabeth St. (212-219-2399).

BUY
Find Outlet Fall Sample Sale
What: Cashmere, sexy tops, dresses, blazers, and trousers — all up to 50 percent off retail.
Why: Need you ask?
When: Thurs.-Sun. noon-7 p.m.
Where: 361 W. 17th St., b/t Eighth and Ninth Aves. (212-243-3177).

Aubade Lingerie de Femme Sample Sale
What: Fancy underthings. Countless colors and sizes. Wholesale and below.
Why: Modesty alert! Mirrors and dressing rooms.
When: Thurs. 11 a.m.-7 p.m., and Fri. 11 a.m.-6 p.m.
Where: 40 E. 34th St., b/t Madison and Park Aves., suite 607 (212-686-8902).

Photo Credit: Jun Pino/V2