Need some help with edging my partner. How should I do it? Please help young girl to surprise his BF

I’m 23 female with pretty little edging experience, mostly not planned. My BF expressed a wish he would like from me to give him a nice edging session. I looked some videos and got the point how it should look like but I would like to hear some real experiences and advices from someone who practiced it on a partner. How should I start? What techniques to use? Should I use some toys? How to know when to stop and start again? How long should I make the session? I will appreciate any other advice you may have and will be very thankful. I would really like to make it good for him. Get your own Orgasm Control toys: For men: http://www.amzn.to/1V6XQvv For women: https://ift.tt/1UWn54n