This idea of dressing "well" an moving is difficult if not impossible to put into words. Almost seems to come down to a matter of self awareness. I use to intentionally dress like i "wasnt trying" to convey an image. The result is looking out of place/bad default. Leading to getting defensive when tour managers confront me on the subject thus making enemies and nearly being fired once actually replaced default. I realized that's about as phoney as it gets the end because whether or not you put an outfit together with intent virtually everyone will assume you did. Choosing to not choose if you will. Stevie Ray did try. He did HIS version of the cool Chicago/new York blues guy thing button down shirt, pork pie hat. While in new york around the time of the first double trouble albums. Moved back to texas; no longer filtering his image to fit the northeast scene the signature buckle hat appears. If it's not obvious that you are image conscious you are effectively aware their for "tastefull/styilish"
As for dancing. I don't know how to relax and avoid tension w/o moving to the music. I learned to relax studying Janek Gwiezdala and Gary Willis. Janic started waring thoughtfully chosen clothes that fit well, often contacts and a hat. Curiously when he got divorced... Gary also managed to cultivate an understated signature look. Only a shade off from truly not trying. My conclusion; If don't take my self seriously its naive to expect anyone else to.