Hello.

Hi OR Hey, depends on the day

i'm like hey, what's up, hello

In real life: If I'm greeting first, I usually use "hey". If I'm being greeted, I usually use "hi".
Online: Ch, I pretty much use it all and then some.

hey
heeeeeey
hello
hallo
hoi
hiiiigh
goodmorning/evening etc.

I'm like hey wassup helloooo

hi or hey

Hey

Hi. Not sure why, just got used to saying it.

hey, what's up, hello

Now that I think of it, I don't think I ever say "hello" irl. I'd usually say "hey".

In person: Hiya
Text: Hey
Phone: Hello

I look down and move swiftly to avoid the person.