Some popular ways people say "Hi" in American English: Hey – Very casual and friendly. Hello – A bit more formal but still common. What's up? – A casual way to ask how someone is doing. Howdy – Friendly and a bit Southern in style. Hiya – Light and upbeat, often used informally. How's it going? – Another friendly way to ask how someone is. Yo – Very informal and often used among friends. Sup? – A shortened version of "What's up?" Good to see you – Often used when greeting someone you haven't seen in a while. @pdf @free @ebooks