Maybe this is because I got taller earlier, and it can't be to do with sport because I was rubbish at all sports as a teenager, but I've always done the thing of standing up straight, shoulders back, taking long strides. I passed six foot aged 14 and that felt like the only way to handle it; if I was going to be tall, my reasoning went, I may as well do it properly.

(Hello, by the way. I've been reading your LJ for a short while now but I don't think I've commented on anything before.)