How to Squirt

I’m 21 and I have been with my boyfriend for almost 4 years. Sex has always been really good and he makes me orgasm. Lately he has been expressing that he wants to make me squirt and that the thought of it turns him on. I have no idea how to do it though! What needs to be done in order to squirt? Can everyone do it? I’m curious as well and I would love to be able to do it for him.