Every purchase done by Peter should support His norms and values. He can either support large businesses that rips people, plants, animals, and the environment at large or rather go for organic and local produce.
Secondly, Donation of blood by saving a life.
Thirdly, give out used clothes to those in need. He can as well donate them to organizations that helps distribute them to the needy.
Fourthly, volunteering goes a long way.This simply means offering a service without getting paid for it. It nourishes the community and gives a sense a humor.
Finally, be kind, do unexpected good to the known and unknown. This goes a long way.