Another thing if you're waiting a long time a quick double check at the desk is a good idea.

Sometimes the thingamajib they give you that lights up gets programemd wrong. That happened to me at Cheesecake Factory.

We went up to the desk and they said "We paged you on the thingamajob and you never came up"

They tested it and sure enough it was boobed.

So they gave us the next table.