Social phobia (social anxiety disorder) is possibly the most common phobia. With social phobia you become very anxious about what other people may think of you, or how they may judge you. Therefore, you fear meeting people, or 'performing' in front of other people, especially strangers. You fear that you will act in an embarrassing way, and that other people will think that you are stupid, inadequate, weak, foolish, crazy, etc. You avoid such situations as much as possible. If you go to the feared situation you become very anxious and distressed.