Put a part of yourself into your video. Explain your own expertise and what you talk about the product. Let the viewers slowly get a picture of who you are one video at a time. Don’t go overboard, give viewers a peek of who you are with each video.One of the simplest ways to find a hot niche is to look at Yahoo and Google trends and see what the hot searches are. Another good tool is ebay. Check out what is currently selling on eBay. You will now have identified target markets what you now need to do is to drill down into these markets and look for the sub category which will be your hot niche.