Apparently, the sound of a person's name is the most pleasant sound to that person - in any language - as long as it's not overdone like some sales pitch.

Do people ever forget your name? Doesn't that annoy you?

Recently I was in a grocery store and I paused to text on my phone. Someone walked by me and say "Oh hi Legion!".

I looked up, saw a girl I knew from about 3 or 4 years back - I'm thinking, what the fuck is her name? - and just replied "Oh hey, how are you, how's it going?"

It was pretty obvious I didn't remember her name. I felt like a prick. Two seconds later, I remembered it.

But I've been in this situation too - where I'll see someone I haven't talked to in ages and I'll remember their name, but they'll look at me and sort of stall/stutter, as my name isn't coming to them.

Sometimes, to avoid this, I won't mention that person's name, and just say "hey".

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The “Four Fs” are the four basic drives that animals (including humans) are evolutionarily adapted to be good at: fighting, fleeing, feeding, and reproduction.

even better, find a nickname this works even more wonders.

btw you should read that "how to win friends and influence people" book, all sorts of lessons about human relations.