She walks away from you without saying anything
Rude!
He says, "I gotta go now, bye!"
Polite!
Sonic tells you, "Got to go!" and runs away.
Rude :(
Stitch tells you "Good night. See you tomorrow" because it's bedtime
Polite!
She tells you goodbye because she has to eat.
Polite!
She says, "Gotta go though" and leaves without saying goodbye
Rude!
She says, "I gotta go. Ok, bye!"
Polite!
She says, "Gotta go! Bye!"
Polite :)