1. Movement Matters
The focus of your video should be on an area of terrain with objects are consistently moving. The whole purpose of time lapse footage is to capture long progressions of movement in a short period of time. Good subjects would include sunsets/sunrises, densely populated areas, automobiles, and changes in weather. In the end, make sure the movements of your subject are numerous enough to keep the attention and interest of your audience.
2. Vary Variety
Keep a healthy variety within in the kinds of footage you shoot. The general theme of the video should be consistent, but at the same time not boring. Be creative in the locations from which you film. Once again, you need to make your time lapses unique and created, otherwise they will put your audience to sleep.
3. Placement Pointers
Where you put your GoPro is very important. You want to make sure the very is good, but if you plan on leaving your camera unwatched, try to disguise the location of your camera. One of the advantages of using a GoPro is that they can be disguised very easily. When disguising your camera be sure the blinking red light which signals when the camera is recording is turned off. I have seen that there are several websites that offer camouflage skins which can be placed on the GoPro housing to increasing its invisibility.