A - Hey there! B - Yo! C - Greetings! D - Howdy! E - Hiya! F - Good day! G - Salutations! H - What's up! I - Hello! J - Heya! K - Sup! L - Aloha! M - Morning! N - Hi there! O - Hola! P - Hey-o! Q - Hi friend! R - Bonjour! S - Hello there! T - Hey you! U - How's it going! V - Yoohoo! W - Howdy-do! X - Greetings and salutations! Y - Hello, hello! Z - Hey, hey!