When recording a video, always use a tripod. Watch out for the background, sitting at your desk is fine unless it is in front of the window. Using a script is OK if you can be natural reading it. However, the best videos are the ones where you just talk like you would if a client sits right in front of you. Remember - make it personal. You are selling your services, and the viewer will know this so it's OK to have a sales pitch. People are looking for help. They have a problem. You need to show the potential client that you understand their issues, and you can help. Use (but subtly) the 'old "Find The Hurt - Stir It Up - Make It So You Are The one To Fix It" emotional sales pitch.
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