Can I Join You?

A young woman sat alone at a coffee shop table. A young man about her age approached the table. They both looked to be college students. He was on her left side and bent slightly at the waist like a waiter.

Can I join you?

I'm meeting someone.

Oh, ok. My name is Aaron.

Nice to meet you. My name is Sarah.

Sorry to have bothered you.

No problem.

Aaron turned and left the coffee shop. No one ever showed up to join Sarah.