Squirting?

So my husband came to me not long ago and said he wanted to try and get me to squirt? Since then hes been trying and it's been the best sex we've ever had, but I haven't yet. I'm not sure what I'm doing wrong or how to make it happen. Hes my high school sweet heart and the only guy iv ever slept with or done anything remotely sexual with. I just want to please him so any tips are very appreciated!!