Angie Harmon eats. We know because we've seen the reedy actress gobbling some of the $2.50 iced sugar cookies at this HP Village café. Order a quiche or a bowl of made-from-scratch soup, grab one of the wrought-iron chairs at a sidewalk table and on any afternoon you can see actual celebrities stroll in, out and by the place. We've done it. Jessica Simpson has been there. And on one afternoon last spring we saw Wayne Gretzy, his wife Janet and, not 30 minutes later, Vice President Dick Cheney and his wife Lynn. The latter were accompanied by a large retinue of Secret Service men and women. Up on the roof of Tom Thumb across the way were what might have been sharpshooters. Hey, it ain't the Polo Lounge, but for the price of a cookie, this place ain't bad for celeb-spotting.