In fact, as someone who was a waiter for nearly 9 years, there were loads of customers who came in on phones, said "2 secs" to their mate, ordered quickly, then went back to their call. I wasn't offended in the slightest. |
It's possible to both acknowledge someone and be on the phone to someone else at the same time.
Come listen to us discuss the Playstation Experience in Episode 11 of Open Source. zoolophage writes in!