There are cool places ... and then there are coooooool places. Busters is a great combination of hip as well as timeless. Bogart might as well be sitting on that bench, pulling down his fedora to block the sun. This is where Ethan Hawke and Julie Delpy would have chatted if they'd been in Southern California instead of Vienna.
Grab a great cup of coffee, a Fosselmans ice cream cone, and a nifty view of Thursday's Farmer's Market. If you take the Gold Line, just get off at Mission and walk across the street.