Be safe on the internet
Never give any of your information out online
Your address. Don't give out your address because you never know when a creepy old dude wearing speedos in his mom's basement is actually your best internet friend.
Your full name. Someone could find you on facebook or other sites, and ask your friends or even you were you live, saying he wants to 'hang out' with you.
A picture of a uniform or other required outfit. This can reveal things like where you go to school, where you live, or even what things you enjoy. Ex: You post a picture of you with your favorite band's t-shirt. The old dude in speedos knows what concerts to look for now.
Your age. Know the old dude knows what age groups to look in.
Your phone number. You never know, the old dude could be some super hacker and trace your phone down.