Use a small amount to make a hop tea and see what they smell and taste like. Pellet hops are hard to identify until they get a little wet and warm up.
From there you can try to see what malt bill they'd work best with. Then create a middle of the road hopping schedule an see if you get a bitter ass beer or a malty one. I'd shoot for something in the amber range- if it's hoppy, great. If its not, then the beer has enough malt character to enjoy.