For tree chopping you just have to stand close to the tree, and then it will happen automatically, I see why it can be a little hard to find out, but we didn't wanna do a large tutorial either. For what you should be doing, just about whatever you want:)
There really isn't an objective, and the end screen triggers no matter what. But I guess you went out an looked for some of the events around the map. Thanks for playing, and thanks for the feedback, I appreciate it a lot:)