Here is the precise and natural English translation of the provided German text:
Everyone likes to feel needed.
Everyone enjoys showing what they can do.
People generally like to help.
They fill their informal “favor ledger” with the acts of kindness they perform.
They seek out friends before they need them.
However, people also do not like to be taken advantage of.
I most enjoy helping when I see that the other person genuinely wants to learn how something works.