"Well, of course, there are times when we're all ill at ease
Though we try to act suave and cool -- 
When everyone seems to know everyone else,
It's just like that first day at school.
        It can be a nuisance
                  Affecting insouciance,

Trying to mix with the crowd:

Knowing that one is probably talking just-that-tiny-little-bit-too-fast

And laughing a lot too loud..." 

"We're shy, so shy..." etc.

Michael Flanders