Everyone else should have been able to talk; why didn't they? Why did no one say anything, greet each other? How long would they stay in awkward silence before one would take the initiative to address the broader group? How much longer would everyone else be content to remain in this strange silence that Airan felt was unbearable? His own attempts to speak had all failed; it did not understand - other than the fact it simply just couldn't talk. Had this slime lost its ability to speak before its body was granted to him? Was this intentional? 

Even as he approached the statue with everyone else, he could not help but feel agonized. The silence was dangerous. It was a sign they did not wish to communicate. That meant mistrust. The occupants of this room mistrusted each other, and that, Airan felt, was dangerous. Mistrust led to paranoia, paranoia led to recklessness and recklessness led to mistakes. Fatal ones. Killings in the name of self defence; any hope for teamwork and cooperation destroyed by the idea that each other was out to get everyone else. 

...Come to think about it, maybe it was he who was just paranoid. 

As he walked, one step at a time, his helmet's movement the only indication that his gaze was switching between all of the occupants in the room, the silent knight only wanted one thing.

Speak. Make conversation. Do anything to end this unbearable silence.