The title of watermelon video should tell the audience who you are and what the video is about. You can add "My name is xx, and I share some knowledge about xxx every day. If you like, please pay attention to my content. The end of the film can be "OK, today's content is shared. Please like it if you like it. "
A good beginning can catch the eye, which is an important factor to determine whether the audience will continue browsing.