When the delicate beauties of fall and winter descend on South Beach like migrating swans, a lot of people want their attention. It can all get a little overwhelming. To relax they need a low-key atmosphere. The Monday-night party called the Beehive inside Penrod's cavernous beachside structure is just the place. After all, most working stiffs don't go out on Mondays, so the pretty pixies can cavort in relative abandon. The sand-in-your-sandals vibe also helps take the mood down a notch. It's a good night to kick back, have a beer, and forget the world is watching. So if you go, remember: Don't stare.