Here are some key points about "sup":
* Informal: It's not appropriate for formal settings or professional conversations.
* Casual greeting: It's used to acknowledge someone and start a conversation, similar to "Hi" or "Hey."
* Implies familiarity: It's typically used with friends or people you know well.
* Versatile: You can use it on its own or followed by a question, like "Sup, what's new?"
Here's an example of "sup" in conversation:
Person A: Sup, dude?
Person B: Not much, just chillin'. What about you?
Essentially, "sup" is a quick and easy way to say "hello" and show that you're interested in what someone is up to.