You are NOT what you say you are.

You are:
How you stand and walk
How you run
How you write your messages in communicating with others
How you write your code in programming and how you write your comments in the code
...

Those are signals you sent to the world and your surroundings. People will catch those signals and form opinion or picture of you. The same signals but different pictures depending on the receivers. You are the sender; you have no vote on the receivers. At least, make sure you send the best signals you can.

Actions define personality.