ITT: post enjoyable pastimes that could indirectly help people overcome their anxiety
>freediving
To be any good, you need to learn how to relax to the point that your heart rate is around 40bpm, despite being at constant risk of blacking out and/or drowning. Every freediver I know has anxiety, so it's a good place to make friends too.
>dancing
Helps teach you pretty quickly how to relax and loosen up around other people, without the use of drugs/alcohol, and to not worry how you might look.
>social skydiving
This is a bit tough, but if you can approach a stranger and start up a conversation with him, it legitimately helps a lot. Works best in a school cafeteria because they aren't going anywhere soon, and being students at the same college gives some room for relating.