Why is it that people who seem so cool in person come across as dorks on nationa!

Question:

Why is it that people who seem so cool in person come across as dorks on national t.v.?

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For instance, I am a Mark Cuban fan, but I could hardly watch him on Dancing with the Stars the other night! LOL

Additional Details

1 day ago
Yeah, they could be nervous. If that's the case, then Mark has been a nervous WRECK! LOL!!

Answers: 1 day ago
Yeah, they could be nervous. If that's the case, then Mark has been a nervous WRECK! LOL!! I think it's because they're nervous.

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