Let's not start the cult of /r/nofap here. And no, you are not suddenly more charismatic and confident. You are just not reeking of cum all the time, something achievable with regular showers as well.
The no fap community is definitely overexxagarating the pros of not masturbating, but in it's core they are supporting a healthy cause. Never been an r/nofap guys but they definitely helped me a bit to stop my porn addiction.