[General MPP/IR Advice]

I'm really interested into landing a spot in a masters program in D.C or anywhere along the East Coast. I'm interested in both an MPP or a Masters in Security Studies, at Georgetown specifically. 

 

3.6-3.7-ish GPA around the time of application. 

I've yet to take the GRE.

Pretty average resume other than that, some work experience and some internship/extra-curricular experience. 

I go to the University of Wyoming, so not a really prestigious undergrad. 

 

What GRE should I be aiming for?

What should I be doing in the last few semesters/summer to set myself apart for admission/funding? 

 

Also, it has seemed as though work experience is pretty highly preferred or gives you somewhat of an advantage in some of these programs, is that true? If so, what kind of work experience is more useful?