With every bit of Hubert's being, he asked Red if they could rejoin the group. And all that time, he didn't open his eyes.
"Please let us join."
Red could hear the desperation in Hubert's plea but he didn't answer. Just like everybody else, he remained silent.
This made Hubert get the wrong idea. He thought that maybe he was getting bullied by the group and feeling ashamed of himself, he didn't open his eyes at all. He didn't want to see everyone trying to hold back their laughter since that would be a fatal blow to his pride.