Teachers should make sure that they do not confuse Social anxiety with Agoraphobia. They might seem very similar but Agoraphobia deals with the fear of a certain situation or place and a person would avoid them. As for Social anxiety that is the fear of social and performance situations and activities. As many other anxiety disorders, teachers should be aware of the student/students feeling uncomfortable in the classroom or situation. If you notice something might be wrong with a student, don't make it obvious and make a scene in front of the class because that could trigger that student's anxiety even more and could cause a panic attack. Calmly go over and talk to the student and make them feel safe and ask them if they would like any help or if they will like to get some fresh air and get out of whatever situation they are in. This would allow time for the student to calm down a bit and for you to get help from a nurse.