Join a Forum
Join an online forum at DiscoveryKids.com. First read all of the boards to find one that interests you. Then work yourself into the discussions on the board and interact with other students. Find out what they like about posting messages to a board. After you have spent time on the boards, tell your classmates about the message strings you read and the responses you received from the other students on the boards.
DiscoveryKids.com
http://kids.discovery.com/boards/front.html