Can giving be receiving at the same time?
Yes.

If you are aware of what you give is what you receive and that the need for an outside source for any of it to be confirmed you can live in freedom no matter what happens.
If for example you are offering someone the gift of a meal and they decline, they are not hungry, what then occurs in you?
Do you feel upset, anger, resentment, sadness or even fear that you are actually being rejected? Or can you see beyond the Ego and recognize the kindness of your True Self offering someone a meal?
The kindness that you are showing in your reality is the actual receiving. It is not the response of the other party. You are the one giving and you are the one receving.
That also goes for any word you speak, any action you take and any other way you choose to Be in this Reality. And don´t be fooled by your thoughts. Your True Self recognizes kindness and un-kindness and the level of which you are aware of it becomes more and more visible to you as you open yourself to being you own creator.