Blowjobs😏👅💦😉

So me and my s/o after a while of being together have taken things to the next level and I gave him a handjob and blowjob but it was the first time I've given that to someone and I felt really disappointed that he didn't cum and I was wondering if anyone else had that problem to start with and if anyone could give me some tips because I want to surprise my man and make him burst because when he went down on me it really was amazing and I just want to be able to do the same so does anyone have any tips on giving a bj?