When you know who you are, you don't have to impress anyone. When Jesus was taken before the high priest, who asked, "What do you have to say for yourself?" Jesus was silent. Wrong question.
When the high priest then asked Him if He was the Son of God, Jesus said, "I am." Right question.
Before Pilate, who asked, "Are you the King of the Jews?" Jesus replied, “Yes, it is as you say." Right question.
In the Luke account, Herod asked Jesus question after question, but there was no reply. Wrong questions.
When you have discovered your identity, you need to say little else. Toyohiko Kagawa, the Japanese Christian who spent his life working with and for the poor, was speaking at Princeton. When he finished his talk, one student said to another, "He didn't say much, did he?"