Answer:
4) Show your emotions and challenge tasks.
Step-by-step explanation:
Open-minded people are wiling to hear and consider new ideas. That doesn't mean that your ideas are wrong and that you should consider only new concepts. By being open-minded you are giving a chance to new ideas and concepts, and you are going to compare them to your own ideas and beliefs.
The hearing or paying attention part is very important since many times we tend to refuse to pay attention to ideas that we do not share, or ideas that might conflict our own personal feelings or interests. You should ever get angry or frustrated if you do not understand a new concept or why it might be important, try to imagine yourself in someone else's position.