I am a 13-year old living in northern Maine and I have never been to a Celtics game before. This has always been my ultimate dream, and yesterday it came true. I just finished my basketball season, (middle school starter) and as a present I got tickets to the Celtics-Lakers game thursday night. If you have been to a Celtics game before, (which I am sure you have) please inform me on what is "main-stream" in TD Garden. What should I wear? Should I bring any signs? Thanks in advance. I am so excited!