You pick whatever you want. That sounds good at first, but soon it doesn't matter what you choose to do. Everything is bland and the same. Web site designers assume that the visitor already knows what to choose. That's not true.
People enter Web sites hoping to be led somewhere, hoping for a payoff.
Goals transform a random walk into a chase. You need clear goals that fit into a hierarchy, with little goals that build toward more meaningful, higher-level goals. Here you are, tracking the footprints of some animal you haven't seen. Then there's the question of feedback. Most Web sites don't very much care what you do.