How do you say what have been up to in Spanish?

There are several ways to say "What have you been up to?" in Spanish. Here are a few examples:

* ¿Qué has estado haciendo?

* ¿Qué has estado tramando?

* ¿En qué has estado metido?

* ¿A qué te has estado dedicando?

* ¿Cómo te ha ido?