I usually do the upper outside of my arm and just wear longer sleeved shirts. I know there's easier places to hide but I can't bring myself to do it anywhere else. To me it is important that i hide them. I never do my cuts deep, so they heal relatively quickly. Also because I keep them to a more confined space, I can cover them up with a big band aid and wear tank tops and play it off as an accident where I cut my arm. I've not had a problem with people noticing my cuts.....yet.