Do I need a reservation if we just want to hang in the bar and get appetizers on a Saturday night?

I believe you can't make reservations in the bar area, it is first come first served. But in the restaurant area yes I would make reservations.

As with any place in WeHo on a Saturday night, it will be busy. Reservations are best, but expect a little wait. However, in my experience they have gotten us in fairly quickly, with or without a res.

Not required, but encouraged