Ok hair question peepzz. ?

I am getting semi permanant(sp?) Extentions friday. (Those are the kind u need to get clipped in and off at the salon with a plier type tool). Ok only a few strips of them maybe four. My hair is very very very thick and curly aNd is below my ears when curly and on my shoulders when straight. Its ligh brown with blonde highlighs. So here's the question...I want color, I want it to be fun and different. What color to get??? (Btw I am pale with rosy cheeks and very green eyes) help me quick before friday