Typical derringer, hold it tight with your middle finger and any other fingers that fit on the grip. Let it roll in you hand with the recoil, but don't lose your grip. I'd recommend starting with light .38's. If you're questioning accuracy, I wouldn't expect anything further than across the poker table.
I have the 38spl it sucks. Hurts the hand and it has like a 40 lbs trigger pull. If you want one get it. But don't think you'll like it or shoot it after the first few times. It's a if you need it use it gun. But there is soooooo many different guns you can get to carry a snub nose is a better choice.
I've got a Cimarron(Cobra) 38spl which SWAGA shows a picture of, but mine is black and has rosewood grips.
If you pull trigger straight back, it takes what feels like 20#s to fire. You have to use a pulling down motion with your trigger finger, which alone makes one lose their grip hold. Derringers that have trigger guards might be different in the trigger pull and poundage to fire.
Then you have only about 3 fingers holding the gun if you have hands larger than a 5 year old. I've tried to do a 2-hand hold, but damn near impossible.
I've put maybe 20rds through mine since owning and it now resides in it's box. Would I shoot it again? Yes. Do I want to? Not if I don't have to.
I actually wouldn't mind getting a 22lr/22mag derringer one of these days, along with some barrels in 380 and 9mm to go with the large frame model I have.