Personality development cannot happen in a day. It happens over time. There are multiple characteristics which need to be worked on while developing one's personality.
Your confidence reflects your character, attitude and passion. You should be confident about who you are and whatever you do. Being confident will help you express yourself and stand amongst the crowd.
The way you speak reflects who you are. Be polite and gentle with your words. Use decent vocabulary while interacting with everyone and always think before speaking.
Dressing sense means the general sense about how you should dress up for interviews. Dressing sense plays a major role in personality and confidence development.
Body language plays an important role to judge a person’s confidence and personality. Try to use positive gestures while interacting with others.
Have a positive outlook towards everything. Nobody wants to be around a person who is negative and complaining all the time.
Listening is a very essential part of communication. This will help you see things from the perspective of others and improve your personality.