In different cultures, what is expected in reciprocity can vary greatly. In some cultures, refusing the reciprocity of a gift can be rude.
Pro Tip 2/3
Not Always Equal
Reciprocity doesn't mean the exchange must be exactly of equal value. He helped her move, so she reciprocated by baking him a pie.
Pro Tip 3/3
Beyond Tangible
Reciprocity includes intangible exchanges like favors, support, or information. Reciprocity in their network involved sharing contacts and opportunities.