disturb the air...

[beeja]

Hi,

Pls help me explain the following paragraph, especially the bold sentences.

Do you remember what high school was like? The cool guys in my high school were the least imaginative guys. They were the onew who had mastered the art of flying under the radar. They showed the least enthusiasm for anything and displayed the least imaginative responses to other people. They were cool. Really cool. When they walked through the halls, they didn't even disturb the air they were so laid back.

Tks, beeja

[Tdol]

If you fly under the radar, you avoid being noticed or detected. The last sentence just suggests that they had so little impact, that even the air didn't move when they walked as they were so disengaged from things around them.