Gratitude conventionally manifests in the context of gift-giving.
AN8.31:1.1: “Mendicants, there are these eight gifts.
AN8.31:1.2: What eight?
AN8.31:1.3: A person might give a gift after insulting the recipient.
AN8.31:1.4: Or they give out of fear.
AN8.31:1.5: Or they give thinking, ‘They gave to me.’
AN8.31:1.6: Or they give thinking, ‘They’ll give to ...