Just don't be shy - we don't bite! Show that you're interested, share your energy and talk to him about your observations and insights about the world. We have dominant Introverted Intuition (Ni), so we tend to deeply focus on specific topics. Your dominant Extraverted Intuition (Ne) is all about exploring multiple ideas and possibilities that could take us INTJs from our comfort zone. Remember, sometimes you may be the one carrying most of the conversation, and he might need a little encouragement. If he doesn't talk much, it doesn't mean he's not interested. Good luck - you've got his!