Wearing shoes I place my feet fairly the normal way, except that I walk more softly and quietly than others (I tend to freak out people with this). Up the stairs I always step on my toes, mostly by double. Down the stairs I use only my toes similarly. My arch is so elevated that I rarely leave watermark of it on the pavement when wet. At home, bare-feet I tend to toe-walk, especially when I suddenly feel excited about something (or nothing at all). Sometimes I run back an forth the apartment leaping on my toes. Quite childish...
When I sit, I tend to hold my heels up above the ground for quite long.
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Another non-English speaking - DX'd at age 38
"Aut viam inveniam aut faciam." (Hannibal) - Latin for "I'll either find a way or make one."