I volunteer at an animal sanctuary and volunteers are always needed really for dog walking and things like that.
I like it because I prefer animals to people anyway and find it really therapeutic. Dogs are a much better judge of character than people - I figure if a dog likes you, you can't be all bad
A lot of the time, I do get really anxious about it but once I'm there, I'm absolutely fine. There's nothing quite like coming home, filthy and caked in muddy paw prints and doggy kisses!
It's great because there's no pressure - you can put in as much or as little time as you want. Even if you just want to walk one dog and then go home - it's got you out of the house and it's got the dog out of the kennel.
Quite low key as well but it depends on if you like animals really and if there's a shelter near you.