A formal English greeting

In the morning (before noon), you say

"good morning" or, "morning"

In the afternoon (between noon and sunset), you say

"good afternoon"

When it is dark outside,

"good evening"

Any time of day you can say,

"Nice to meet you" (formal)

"Hello" (formal),

"How are you?" (formal)

"Hi" (informal)

"Hey" (very informal),

"What's up?" (very informal)

"How's it goin' ?" (very informal)

hi yall (very very not informal)

howdy partner

poop on your heads

man go to the toilet

did u do a stinkbomb

ah ya yi

p p p pokerface p p pokerface

excuse me

blast

blasted