Being generous will allow you to share gratitude, to get deeper emotions, to enlighten others.
You may think that keeping it for yourself might be the best thing to do but when you start so share just for the sake of it, and not for being recognized, something might shift.
You might get to connect to more people, to move the needle of your life.
People will be surprised and amazed by your generosity, and from there on they will start thinking about it, about how much worth was it.
And maybe they will start being more generous too, not as a sign of emulation but as of pure delightment.
You made them change in a beautiful way.