What's up? or What's new?
It is a casual way to greet someone and ask about their news or what they have been up to.
Here are some examples:
* "Hola, ¿que cuentas?" - "Hi, what's up?"
* "¿Que cuentas, amigo?" - "What's new, buddy?"
* "Que cuentas, ¿cómo estás?" - "What's up, how are you?"
It's important to note that "que cuentas" is a very informal greeting, and it might not be appropriate in all situations.