Is she or he feeling a certain way for a specific thing or is more in general that they are depressed?
Cam :?:

If its a "close friend" give him/her a back/neck message.. Melts anxiety away.

For the most part.. Anxiety has to run its own coarse.. It cant truly be stopped but it can be dealt with and even shortened. It can also get worse, leading to panic. The best plan is to be calm and try calm and relaxing techniques. Breathing excercises etc..