Aaaahhh - I see, says the blind man - - - that does make it more awkward - - -
I admit that when I give something to someone, I do enjoy receiving a "thank you" and I do enjoy seeing the items being used.
Most of the time, other than a "thank you", I really and truly do not expect anything back - if people feel they MUST do something, a "pass it forward" to someone else would be nice.
And if something I'm offering really is NOT wanted, I would like to have the person say something like "thank you for thinking of me, but maybe someone else would have a better use for it" - none of us need more clutter in our lives.