A girl was feeling sleepy(as she'd just woken up.)She's talking to her friend. So her friend asks her to pick up a glass of water,and :

Throw it on your face.  

Splash it on your face./Splash your face.  

Spill it on your face.  

Pour some water on your face.  

What should be used "#1 or #2(with that or option) or #3 or #4?  

So what should be used?  

And an additional note: What should be used:Splash your face or Splash water on your face?