At the end of this passage, Helmholtz Watson is pretty disgusted with Bernard Marx.
Helmholtz and Bernard are good friends. They are both slightly out of place in their society -- a little bit of misfits. Helmholtz, in general, likes Bernard, but dislikes a couple of Bernard's habits. He especially hates how Bernard alternates between bragging and feeling sorry for himself.
In the passage you mention, Bernard has been bragging. He's been claiming that he really told the Director off when the Director threatened to send him to Iceland. So Helmholtz doesn't respond -- he just kind of looks at Bernard, Bernard becomes embarassed and leaves.