By communicating, exploring what is making them jealous! If it is you, write it all down, get it out of your system. Once done, rip up the paper.
If you're with the right person there will be no need for jealousy.
by getting yourself satisfied with what you have instead of diverting your mind to something you haven't got......
By being confident about yourself and Trust
Jealousy is the fear of losing something that you can only lose if you never had it in the first place...
Thinking in the bright side
Go with the flow.
Six swift kicks to the as$ Jealousy is wasted energy. Be confident, assured, look at her and think"eat your heart out, He 's mine"
Stop and think about is what I'm jealous about really worth it and is being jealous helping or hurting me?
You don't control it, you just think about doing things for others instead of about others :P (Not implying that you're a bad selfish person I swear, I don't know you... It's how I got over jealousy. It's a waste of energy...)