The first thing to do is to decide the concept and have a good idea of what you want to achieve. Afterward, it’s important to have a background and constant lighting conditions. This is because even little change in lighting, exposure, etc. can be noticed in the end video.  Then, you need to make sure that your camera is steady and stationary. You can use a tripod stand for this. After choosing the format you want to film in, you can then start executing your idea and filming.