"Argumentation" is one of the necessary rhetorical modes. You cannot escape it altogether in human interactions since it is central to conflict resolution and negotiation. The key is to understand psychology/sociology of both oneself/others along with rational approaches and know when to emphasize one over the other.

For some background see;

1) List of Cognitive Biases - https://en.wikipedia.org/wiki/List_of_cognitive_biases

2) List of Fallacies - https://en.wikipedia.org/wiki/List_of_fallacies

3) Modes of Discourse - https://en.wikipedia.org/wiki/Modes_of_discourse

4) Argumentation Scheme - https://en.wikipedia.org/wiki/Argumentation_scheme

5) Conflict resolution - https://en.wikipedia.org/wiki/Conflict_resolution

6) Negotiation - https://en.wikipedia.org/wiki/Negotiation