I have given some A++ blowjobs and some just "okay" ones, and the biggest difference in the quality is how much it's turning ME on to do it. I perform better when I'm fulfilling that selfish NEED that I have to suck him. Sometimes that means a slow, no-rush blowjob that starts with a lot of love-y licking, sucking, ball play and inner thigh kissing. Sometimes that means dropping to my knees in front of him to give myself that full but experience. .....there is also something to be said for the novelty of being "face fucked" with your hands restrained (we used handcuffs) or, if you're comfortable, bringing a masturbation sleeve/Fleshlight in for the thrill of the simulated threesome experience for him (i.e. sucking his balls while jacking him off with it)