Walk straight up to him, look him right in the eyes with complete confidence, shake his hand FIRMLY, and let go after a very brief one. Introduce yourself, refrain from commenting on his daughter at ALL costs, unless he asks you a direct question. He is very protective, like most fathers. Give him no reason NOT to trust you. When he speaks, you listen with the utmost attention, if it is a difficult question about his daughter, such as. "You don't plan to have sex do you?" You look him straight in the eye and tell him you respect her too much. If your eyes shift away, it will give the impression of you being un trustworthy. BE YOURSELF, but incredibly respectful. If you pretend to be someone your not, he will think you're a liar, and a fake and will never trust you.