When the annual International Bear Rendezvous hits San Francisco, the Eagle's sprawling patio swarms with burly, leather-bechapped men looking for a muscular lover or maybe a little rough trade. Yet this gay biker roadhouse is also one of the friendliest, most open hangouts anyone — even a scrawny straight hipster — could want. Witness the Eagle's weekly "Thursday Nite Live" event, a celebration of alternative music and lifestyles where rock bands like Thee Oh Sees, Saviours, and Wooden Shjips pack the house with happy crowds of all sizes and sexual persuasions. With decor that imagines Marlon "The Wild One" Brando flirting with Tom of Finland in a gas station bathroom, the Eagle is just grubby enough that no one can get too pretentious or frou-frou — and that's exactly why it works so well.