At the restaurant

Robin: I think the waiter has forgotten us. We have been waiting here for over half an hour and nobody has taken our order yet.

Michele: I think you're right. He has walked by us at least twenty times. He probably thinks we have already ordered.

Robin: Look at that couple over there, they have only been here for five or ten minutes and they already have their food.

Michele: He must realize we haven’t ordered yet! We have been sitting here for over half an hour staring at him.

Robin: I don't know if he has even noticed us. He has been running from table to table taking orders and serving food.

Michele: That's true, and he hasn’t looked in our direction once.

Robin: Look, he is coming!

Waiter: Good evening Sir, Madam. Have you ordered yet?