Apart from the usual jilling at home (or outdoors) using fingers, vibrators, dildos, or bananas, I have taken to doing this at work for an extra thrill.
Being interested in girls (sorry fellas) I sometimes get in the office early and take a pen or pencil from the desk of someone I fancy. Then I go to the bathroom and fuck myself with it, but I don't allow myself to cum. I just get my juices on it. Then I put it back.
For the rest of the day, I am really horny and desperate for a cum. Now, the owner of said pen or pencil helps me to 'edge' but she doesn't know it. She picks up the pen, writes with it and so gets my pussy (dried by now) on her hand. Then, will she? Won't she? It's almost to her mouth...will she suck it? No, damnit, she's put it down again. Hey wait? here we go!!! It's to her lips. She has paused, is smelling the pen. Working again now and OHHHh YESS. She slips her pen into her mouth while she is thinking.
I have to go to the bathroom immediately and jill off thinking about her sucking me without her knowing it.
That is THE way to edge girls, and it works on men AND women. Try it.