OK man. you asking how to hell tat's mean you're fresh newbie so head to newbie forum, i'm not expert but i can tell you how exactly to jelq:
Start by rubbing approximately one-half a teaspoon of Vaseline, skin lotion, skin oil or petroleum jelly in to both of your palms and penis. When performing this exercise your penis needs to be semi-erect, as a fully erect penis is of no use. If you find yourself becoming aroused simply stop the exercise until your full erection goes away.
With your thumb and forefinger on your right hand, form an "OK" symbol. Once you have formed this symbol, take your thumb and forefinger and squeeze your penis shaft as close to your scrotum as possible. While maintaining a tight grip, pull your hand downward to wards the top of your penis, stopping just before you reach the glans (head). As you slide your hand downward, the head of your penis should noticeably expand.
As, or just before you release your penis from the grip of the right hand, place your left hand at the bottom of your shaft repeat this movement. This act should be continually preformed, switching from the right hand to the left in a "milking" manner. It is important that a tight grip is sustained around your penis with your thumb and forefinger as you perform this action, while the head of your penis expand as a result of the increased amount of blood flowing to the glans.
Throughout the initial week of performing this exercise, limit the amount you jelq each day to around 10 minutes. After this initial week, try to work up your sessions to around 20 minutes a day. Than after about 2 weeks, work yourself up to jelq sessions that last 30 minutes or so. After about a 3-4 week period results should start to become noticeable.
Good

Luck