Standing At Ease
You may think that soldiers standing “at ease” don’t look like they are comfortable. However, after several years of standing in a particular way, the stance somewhat becomes comfortable, even when you get back to civilian life.
Sir And Ma’am
Being respectful is taught to all soldiers. It doesn’t matter whom they’re speaking to. It could either be the flower lady, the milkman, or your parents, soldiers will call males ‘sir’ and females ‘ma’am’.