Squirting

So Ive seen some posts about squirting. 
I can do it, Ive done it once on my own and one good time during sex. Ive done it a few other times but it just was a little and its always random. I cant ever do it when I want to. 
I think it feels amazing and have been dying for it to happen again. My husband loves its. 
I am asking for tips! What do you ladies to do to squirt? What does your SO do? Whatpositions work best?