How to add Your Avatar Photo when Commenting on Blog?

Have you ever wondered how could you add your own photo or representative image to a blog, forum or other social media sites while you are commenting? If you want to establish a relationship and trust with other bloggers or readers, it is good to show your face to them so that they can identify with you. This photo or image will become your avatar and once you have it set up, it will appear everywhere when you post a comment.