Why do you give?
Option number 1 is, because by giving you expect the other(s) to feel obliged to giving you back at some point. For as bad and opportunistic as this sounds, we often approach giving from this standpoint, believing our action will lead to some sort of return at a later moment in time. Working hard to get a promotion is a good and quite common example.
Option number 2 is, because by giving you expect the other(s) to feel inspired to giving back at some point. You have certainly noticed the two tiny yet important differences: first of all, inspiration is a better call to action than obligation; secondly, you remove yourself from being the recipient of the giving back. Working hard to set a high standard for others to aspire to (no matter when, where, and how they’ll get there) is a good and fairly uncommon example.
Option 1 binds others to your plans, option 2 frees them to find their own way to fulfill their act of giving. Option 1 sets you for disappointment and others for dissatisfaction, option 2 sets you for amazement and others for discovery. Option 1 understands work for a reward, option 2 is work for the sake of doing work.
Be mindful when you choose.