I offend them and ask their name.

i say aye how are you

I'm honest. I say "I'm so sorry, but I've forgotten your name..."

It happens to me way to often

I wait and pray to god that someone says there name! carefully weaving around having to say it. lol

I pretend I know them..

Ask them their name and when they reply with their first name, say "oh no, I meant your last name"

Hi. It's great to see you. I feel like a dummy, but your name evades me...forgive me. *just be honest, and sincere.*

I've gone an amazingly long time with some great conservations for weeks with people who's name I was unsure of. Eventually with a bit of help and creativity I got by and got their name.

It takes less than a nanosecond from the time I'm introduced to someone until I've forgotten their name. Unless they have the same name as I do. Those I can recall.

I just call everyone Slappy.

I'm still unsure of which of my nieces is Aime, and which is Hannh. They are both teens by now. I see them frequently. Gotta start paying attention.

I've always been good at remembering faces but never so good with names. Most of my encounters with them are brief so I just carefully avoid saying their name when in conversation (it always feels extremely awkward when I can't remember). If I see them often I'll eventually bite the bullet and admit my lack of memory and ask them, but most of the time I wait to see if I hear someone else say it.

When you meet someone that you know, you don't need to know their name. The problem starts when they recognise you but you don't recognise them.

Be grown and ask.