I doubt there is a man alive who does not thoroughly enjoy getting a great blow job! With 30+ years of cock sucking experience behind me, I would love to share some of my sexy secrets with you, on the art of giving head.
Like most sex acts, there are an infinite number of positions you can assume in performing them. With this particular technique, I recommend your man be standing in front of you, facing you, while you kneel or squat on the edge of a low to medium height bed or sofa. If he begins to feel a little weak in the knees as the act progresses, he can simply lean forward against the bed for support.
You should take his hard cumpole very gently into both your hands, placing all ten fingers on the shaft, not touching the head or tip yet. Slowly begin rubbing his skin softly, by moving your hands back and forth in opposite directions, as you would twirl a stick in your hands to start a campfire. Remember, start gently -- no hard squeezing yet!
As you continue these finger-stroking movements, open your mouth wide in order to fully cover the cock's head without touching any part of it. When the entire head is inside your mouth, slowly close your lips over it as you start sucking softly. Utilize every area of your mouth -- tongue, cheeks, teeth, and roof -- to make direct cock contact! Continue this touching/sucking technique for about 10 minutes.
Glide the tip of your tongue back and forth, along the section where his shaft meets the head and forms a v-shape on circumcised penises. If your man is uncut, then you should do this tongue action around the ridge of his foreskin, being careful not to lift up the foreskin too much with your mouth. That area is extremely sensitive on uncut cocks. He may also enjoy a bit of nibbling, but be careful not to bite down too hard! The combination of the sucking and licking and nibbling should have him squirming a bit!
Begin twirling and twisting your tongue more firmly along that v-spot, while lowering your hands further down his shaft, continuing to touch him with all your fingers. As you slide the shaft deeper down your throat, lower your hands to tenderly touch and caress his balls. You should also be running your tongue up and down the ridge on the underside of his penis, where the canal-like tube fills with cum all along the length of his hardness. You can flick your tongue back and forth across this ridge as you work your way up to the head again.