Categorize the following list into common greetings and common parting words: goodbye, hi, hiya, howdy, see ya, what's up, i'm out, how are you, how are you doing, peace, sup, talk to you later, see you soon, have a good one

Common greetings: hi, hiya, howdy, what's up, how are you, how are you doing, sup
Common parting words: goodbye, see ya, i'm out, peace, talk to you later, see you soon, have a good one