Sad or What?

““Every man has his secret sorrows 
which the world knows not; 
and often times we call a man cold 
when he is only sad.” 
― Henry Wadsworth Longfellow

This is taken from the Dragon Dance at SM Marilao last Chinese New Year.

Looking at the boy carrying the last post or the tail part of the dragon, he seems to be sad.

Do you think he is really sad or just tired carrying and roaming around the mall?