Give in ways that leave the other person more capable.
LEADERSHIP
LEADERSHIP
The aim is that someone stands more firmly afterward, not that they are more indebted. Teach the thing, lend the tool and show them how, make the introduction rather than doing it on their behalf. Capability is a gift that keeps working long after you are out of the picture.
With any help you are about to offer, ask what version of it leaves them able to handle this next time. That version is often slightly more work for you and considerably better for them.
What skill could you pass on instead of a favour?
Free, with nothing to buy inside it.