How do we know that Telemachus is nervous about talking to Nestor?

Telemachus's nervousness about speaking to Nestor is evident in his hesitance and anxiety before approaching the older man. He feels intimidated by Nestor's wisdom and status, which makes him doubt his own ability to communicate effectively. Additionally, his internal thoughts reveal a sense of uncertainty about how to initiate the conversation, highlighting his apprehension. Overall, his demeanor and hesitation indicate that he is anxious about this important encounter.