"Que pasa" means "what's up?" or "what's going on?" You would reply however you would reply to either of those questions.
Que pasa means whats up.
Let's assume it's a question. Then it says, "What happens if I love you?"
Que Pasa (KA-PASA
que pasa
The common phrase is "Que pasa?"
Porqué que pasa
"hola que pasa"
Que pasa? (accent on 'e')
Que pasa facebookea
Que pasa, chica
"¿Que pasa en Alemania?"
que pasa, chula