One of the top uses of video for marketing now is in the area of testimonial videos, which is one of the best ways to generate trust among viewers. When people watch a testimonial video they see not just one, but FIVE witnesses to a product's worth or effectiveness. The number of people in a video also differs from testimonial video, with the most common amount being two; sometimes it could even be five, although this seems to become harder to attain. While the number of people in a video for a testimonial can vary, the testimonial itself does not.
When it comes to making an effective testimonial video, there are some things you should know. If you are planning on recording several people, try keeping the number of people in the video to a minimum. Usually it is best to keep the number of people in the video to a minimum, which means a maximum of two or three depending on the topic. Two can be too few for an introduction, and too many for a more in-depth look at the person giving a testimonial; you should stick to two, with exceptions of three if it is a "how-to" video and five if it features a live person giving a testimonial.
As for the content of the video, you should have a firm grasp on your topic and your audience at least two levels down, with the first level being a good overview of the product being endorsed. Don't get too wordy here, and do try to stay on point. The best advice here is to stay on point.
The second level is to talk specifically to the person being interviewed. A good idea is to have an introduction, possibly with testimonial video samples or testimonial endorsements, before you get to that person. Again, stay on point here, avoid being too wordy and also keep your focus on your topic.
The third level is the testimonial itself. A real good idea is to have a "talking head" style video where the subject is talking to camera. It's best to have at least two or three of these types. If you can, try to do the subject a solid and have one or two in each video, as this helps build the trust. This does not mean you can't have a "talking head" video at the end of a segment, but you should not count on it. A good interview format would be if your subject is talking about the segments and you have a "talking head" section at the end.