What is that person's name?

We moved to Stevens Point, Wi  57 years ago.  I have met many people here since then.  However, there are many that I haven't seen lately or regularly.  So, when an event is held where people meet in a room, there are faces that I recognize but I can't put a name to.  In some cases,  I know I have known a person for a long time. I am reluctant to reveal that I have been unable to think of their name.  I very much appreciate when the person senses my problem and just says their name to me.