I would recommend that if you take people’s coats, you should also consider returning them to their owners later on.
hahaha. Nice joke.
I’d say if somebody has such passion that they can find being close to Catholicism from taking people’s coats that there are many places in Catholicism they could find that they would be happy with!
Do they like music? If they do, maybe they can join the choir or if there is a music ministry, they can do that. Music is a great way to get to know other members of the Church since it is about community!
If they’re male, they can join the Knights of Columbus. I believe they’re involved in a lot of causes such as fundraising for various things such as anything a parish might need.
If they’re female, they can join the Catholic Women’s League which does similar things.
There are many other groups one can join.
At my parish, there are people who help with seating or help with distributing bulletins at the end of mass.
Depending on their age, they might also be able to join the youth ministry. There are many Catholic youth groups out there; some specific to a parish, and some are even at universities!
There are so many ways to be part of the community! The possibilities are endless! I hope this helps.