A fit body gives you confidence. And there's nothing more impressive than a great attitude, which you can wear on your sleeve. But you'll have to remember the difference between being rude and being confident.
I've missed more than 9000 shots in my career. I've lost almost 300 games. 26 times, I've been trusted to take the game winning shot and missed. I've failed over and over and over again in my life. And that is why I succeed.