Is there any difference between assertivity and aggressivity?
Through assertivity you can gain friends, through aggressivity you can loose them.
Assertivity is a social competence conclusively present the own opinion. Conclusively means at full tilt of argument or personal authority and not by means of aggression, or by means of official authority, arising from the organisational hierarchy. Assertivity helps to reduce the project environment aversion by achieving the personal or group goals.