i beleave in an other form of freindship. first, i think that freindship comes with time; you have not to choose some girl or some boy to became your freind? it just came with time . i don't how but at first you have to communicate with people then you will appreciate one of them or many. after he /they became your freinds; they assist you at your moment of happiness like sadness. for the character and style, i think that you will appreciate more the persons who are just like you, no! finally freindship need time to be feeled between tow persons or more.

I agree with Rubis, it grows with time. You can't just say: "Hey you want to be my friend?" It happens over time and by the time you are friends, it's not necessary to say it anymore because you both know it. ;)