Just show up and wait.
If anything, I would at least call ahead and ask what the wait time is. I've never been there when they haven't been busy.
You can call ahead and make reservations or just show up and they'll seat you right then if they're not busy or put your name on a list. We haven't had much of a wait, if any, during lunch, but breakfast and dinner are usually busier with a 15-25 minute wait depending on our party size and day of the week (weekend seems to be busiest).
Yes
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