Dad just smiled

I could hardly contain myself over the prospect of giving Len his own instrument along with the promise for lessons.

"I'll make sure you get a letter from Hospice for your donation," I said to Dad. "You can take it off your taxes." Dad seemed uninterested in the offer. 

"And thank you. A lot. Len will be surprised. I'll let you know how it goes." 
​
Dad just smiled.

Dad's gift-giving was instructive to me. What do you take away from his actions, his words, his gestures?