1. Get yourself turned on.
2. Slip a finger or 2 inside your vagina all the way palm facing up.
3 Curl finger tips in a come here motion and slowly drag along the front wall until you hit a bump. (pay attention to the texture inside should feel smooth and then rough spongy. Inside this rough area you will find the G-Spot everyone is different so you will have to play.) If you hit it and push you will feel a pressure like you have to pee. Also you will feel the pelvic ridge i think its called, a bone you can hook fingers on to this is very close to where you need to be
4. Now that you found it it is time to work it. Instead of your normal in and out motion you want to push on it like a button literally lol rapid and building up heavy pressure. So fast and hard if it is working you should feel like your going pee this is the moment once that hits critical mass pull out and let it fly.
Lol i taught my wife she was a major skeptic and never squirted before but with those simple instructions you should find it in like 3 seconds. May take a few tries to actually squirt, first is getting over the fact your NOT peeing. Oh make sure to have a towel or your going to make a huge mess it can go for like 6 feet.
If your fortunate and it is in shallow then you want to go ahead and buy you a Gigi and be amazed at how many orgasms you can have in such a short time span.