Zero! Yes, that's true! But let me warn you about one thing: there are some persons who do not know how to give. It was either their home environment, the society they grew up in or other factors that did not allow them to develop a "caring" self. Sometimes it pays to discuss the problem with your partner. For example, if that partner is shy on words - in other words talks little - then suggest to him/her that words mean a lot.
Why don't you try this: tell your partner how you feel about him/her and ask him/her to please let you know how he/she feels about what you just said. Yes, this seems like a classroom scene but be assured that it often works.