There are walk in but if the show is sold out then you must wait until something like 15 minutes prior to the show for the people who purchased tickets to be declared no shows. That can entail standing around for a long time.
Ticketing is limited, so availability for walk-ups isn't guaranteed.
Yes they do; but of course this is a popular place you're dealing with. Availability of (walk-in) seating is limited, especially for a popular act. It is always best to get reservations!
Yes.
Best to get a reservation, especially for popular acts. Seating is not reserved, first come first seated. All parties have to be present to be seated at a table.
Depending on the specific act, and if there are any seats left.
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