take interest in something her father likes, be his friend if you can
try not to say anything which is an opinion, over protective people are usualy conservatives so think conservatively, don't wear any earings, have a stupid haircut or slouch when you walk.
finaly - LEARN PROPER TABLE MANNERS!!! don't hold your fork like you are stabbing whatever it is (like i do), don't talk with your mouth full, pronounciate your words correctly, don't use slang, say 'excuse me' instead of 'move please' (that's what i say

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good luck