* What should I do?
* What are some things to do?
* What's there to do?
For example:
* ¿Qué hacer en la playa? (What to do at the beach?)
* No sé qué hacer hoy. (I don't know what to do today.)
* ¿Qué hay que hacer en Madrid? (What are some things to do in Madrid?)
It's important to note that "que hacer" is a common phrase, but it doesn't have a direct one-to-one translation into English. The meaning can vary depending on the context.