Which side are you on? Nature or nurture? You should be specific.
Nature means that behavior comes from genetics. For example: we automatically know how to move our mouths and eat. No one taught us how to eat. .
Nurture means that behavior is learned from our mother and father. Behavior is learned from the environment that he/she grew up in. It can be from experience. For example:
Your mother teaching you that it's wrong to steal. You get a punishment. You learned not to steal anything next time because you will get a punishment.