bacause he cant do about it..
try instead to think "I am the best and all admire every thing that i do"
no it doesnt divert the attention from you.
What about " I am my own judge"
or: there isnt anything to judge at all as nobody know for sure the meaning of it all and we migth as well be ants in a huge ant hole doing things that we human found useless when watching ants building their edifices.
So, what can you use that for ?
I'll tell you:
As you dotn know for sure, you migth as well enjoy it, and do what you enjoy, and thats the most important of it.
Enjoy what you are doing regardless of what other "migth" think.
Just do what feels right inside and you will always be happy and you will lose very fast that feeling of others jusging you.
This too shall pass.
(WAW! what a platitude in longitude!)

PS: sorry for the last one, couldnt resist the test.