Answer :

Nerdychick
It changes the world around you because there is only one you. You can make a difference. You can change the world! People around you will notice you presence, by the what you act what you do. What you believe and what you stand up for. It takes one person YOU to make the world a better place. You presence is felt because your you. 
your presence changes the world around you in many ways. First, you can make a difference by just doing one small thing to change the world . and you can also make the world a better place by making other people happier. That is how your presence can change the world around you.