facenesia
When your brain is like 'I don't know who this is' and your mouth is like 'I'm gonna pretend I do.'
He walked in and I said 'Hey' and it was my dad. I didn't know who he was. I said 'Hey' anyway.
My teacher walked in and I said 'Hey mom' and it was my teacher. Classic facenesia.
I saw my friend and said 'Hey stranger' and it was my friend. I'm just bad at remembering faces.