When I walk in public, I stand up as erect as I can, head up, eyes forward, shoulders back, and keep track of my surroundings. If outside, I wear sunglasses so it is harder to see where I am looking.
When hubby and I visited Detroit (my hometown) many moons ago, we attended a waterfront festival after spending a few hours in Greektown and the casinos. It was getting dark and we had to walk back towards Greektown to get our car. I advised him to “walk big and walk loud”.