Getting to know someone new: dating vs friendship

What's the difference between the early stages of dating versus just getting to know someone new? The dance is much the same: give and take. Got to keep them interested. Keep the tease alive. Give, but not too much. Aim to keep them wanting more, keep them coming back, keep them guessing for what comes next. Much of this probably plays a bigger role when dating but to a lesser degree is still present in a new friendship. Finding common ground, exploring differences, introducing the other to new things. What's the main difference? Is it whether or not your goal is to get the other person naked? What difference does this make when you have already seen them naked....?