What should I do with this guy?

This guy I like who is a family friend rarely initiates conversations. I think he is comfortable in knowing that I will contact him. When I contact him he displays affection and also demonstrates sexual interest. But I need more from him. What should I do to make him contribute more effort? I was thinking to distance myself , what are your thoughts? I’m hoping he will be like what happened why isn’t she contacting me?
What should I do with this guy?
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