How does the pile try to hide a feeling of nervousness before the flight?

The pilot may attempt to conceal their nervousness before the flight by maintaining a calm demeanor and projecting confidence through body language and communication. They might focus on thorough pre-flight checks and engage with the crew and passengers to distract themselves from their anxiety. Additionally, they could rely on their training and experience, reminding themselves of their skills and the safety protocols in place, which helps to mask any underlying apprehension.