What's up?
What's up?
What's up?" is a casual greeting used commonly in English to ask someone what they are doing or how they are, similar to saying "What's happening?" It's a friendly way to initiate a conversation and catch up on recent events.
What's up? How have you been?
How have you been?
Hey, what's up? Long time no see.
Hey, how's it going? It's been a long time since we've seen each other.
What's up with you? Everything going okay?
How are you doing? Is everything okay with you?