The last one is Terrible…
Oh, so you didn’t wave at me? (not actually asking, just me, in my own mind)
(confused and embarrassed face, after seeing someone else near me)
(I don’t do this if a stranger Waves though lol - That would be Strange - I also only respond if someone is actually near me and addressing me directly, or screaming “why didn’t you answer”, otherwise, I might embarrass myself)