Hallo!

It's time for the 2nd contest of the year. Guess the answer to this riddle!

I follow you everywhere yet you can't catch me.
Turn off the light and you can't see me.
I can make you look fat or thin,
it all depends on how you cast me.

What am I?

To answer the riddle, click on 'comments' and type your answer in the box. At select profile, choose 'anonymous'. Remember to type your name and class with your answer and click on 'post comment' to submit your answer. Deadline is the 26th September!