Nicola has already done 25 good deeds with GoodGym. Instead of doing anything else, they've used their run to go and help people that need their help; digging, lifting, scraping, clearing, planting and weeding. Stuff that makes this a better place to be.
Nicola has visited an isolated older person during their run 10 times now. It sounds like they've made friends. This is likely to have made a huge difference to the life of the older person. Isolation and loneliness are crippling for many; a friendly face visiting regularly can change someone's whole outlook on life.