I walk on the right outside of my sole, fortunately now when I wear shoes anymore. It just happens and I don't do it on purpose. I heard about toe-walking and figured it might be similar, because I did this since I was little.
I also climb stairs on my toes only, I can't stop it or I'll risk falling flat on my face. I also didn't realise that not everybody is doing it until I watched my first real friends walking up and down the stairs not on their toes.