Well, from my point of view the most precious aspects of a relationship are the things you give as well as take: love, trust, support, sharing time and creating memories together.
They are weaved into everything though for me I think.
I buy a guy present, I only do it because I care about him and think it will lift his spirits for a while. I think then I think maybe he thinks im trying to buy him so will say ' hey I dont wana nuttin from you'