text: Using technology can give you false information if not used properly. It can read that your happy but in reality you can be sad or angry you just aren't showing it because you don't want others to know. Also, it can read that your sad but in reality your trying to show people that your happy so they don't ask you whats wrong. If the person who read your expression through their computer goes up to you and tells you they know that you aren't happy it can make the person feel angry because they were trying so hard not to let people know that they aren't upset.