Well I love pussy, all pussy, young, old and in between. I'm a pink white boy, but I really love black girl's pussies or any flesh noticibly darker than me. I get my whole face in it, up to my cheek bones and tounge fuck 'em.
As for BJ tips, swirling the tounge across the little v on the underside of the head is good, but so is taking it in as far as you can, then sliding back up, slow, about a 3 count each way, while sucking very hard. (This observation is as a recipient, no practical experiance giving it.)