Yes, that’s the key. Being confident about who you are and what you are doing is the most important tip for personality development. Never doubt your capabilities and if there is something you need to work upon then put in all the effort so you can come over your fears and gain confidence. Read success stories or surround yourself with motivational thoughts or “encouragements” which can boost up your self esteem and help you in attaining a charming personality. Just everything you do, have faith in yourself and put in your hard work. There can be nothing more appealing in your personality than an incredible confidence.