1. My dad may not be easygoing at first. Once you get to know him you'll warm up to him.2. My boss is very approachable. I can talk to him about anything.
 easygoing not picky; agreeable approachable easy to get along with each to satisfy fine with anything很好相處的意思，easygoing 很貼切
The thesis of your essay is completely obcured by your flowery language.