With the reverb you only want to apply a small amount, and make sure that it's only reverbing the high frequency's of your hi-hats. Don't know what daw or vst you're using but usually there's knobs to adjust what part of the frequency spectrum the reverb is going to (hi-pass, low-pass). Anyways that's just if you want it to sounds like its being played in a room and sound more 'alive'. Also if you're eq'ing your hi-hats its generally a good idea to completely take out the low frequency's, and maybe a little bit of the lower middle(maybe 200hz and below) if you want more room for the bass, kick, snare, ect.. I'm not a sound engineer or anything so don't take my advice as the right way to do it, but that's what I would do. 3+ years experience working in dubstep electro.