1 build up to the bj: often you might just want to go straight to his crotch thats fine and good but men enjoy pre-intimacy too it makes the orgasms feel stonger and more enjoyable
2 Dont forget about your hands: just because you are using your mouth doesnt mean you should leave your hands idle use them to massage,rub,stimulate and caress and oh pay attention to his testicles.
3. Make it wet: it may seem like the easiest but its really important making it really wet give the silky feeling of the vagina and suck in your cheeks to make it tight.
4. No teeth: its a sensitive place becareful about the teeth except to do some light grazing at the tip to keep him on edge.
5. Enjoy yourself: dont do it like a job you hate get into the moment.