i use my one handed shooting techniques from sport shooting.
in a nutshell... i get into a fighting stance with my strong hand forward, similar to a low boxing or martial arts stance. my gun is canted about 20* and i rotate my shoulders into the weapon, putting more of my forearm and upper arm muscles behind the recoil. this helps me point shoot, manage recoil, and place follow-up shots quickly. getting the shots inside an target? i can bill drill some alphas, with a charlie or two on cm99-63 merle's standards strong hand at 60 feet in a reasonable amount of time.
the rest is practice.
with my 380, the thing is so small, it's almost pointless for me to practice two handed. that, and in a defensive situation, chances are my left hand will be busy holding valuables or pulling my fiance out of the way. i still practice with my left as well.