Mars - In the desert

Hint: What do I do here?

Hint: How do I get the hostel door to open?

Hint: What do I do once I'm into the second set of dorms?

Hint: How can I look under the covers in the hostel dorms?

Hint: Why does the alien want to kill me and how do I stop it?

Hint: How do I open the locker?

Hint: How do I operate the tram?