But first, how do you know you're dealing with an oversized ego and not just a healthy dose of confidence and assertiveness? Watch for some of these common egotistical behaviors:
Wanting or demanding credit for every idea.
Using "I" and "me" (instead of "we" and "us") almost exclusively.
Dominating conversations and meetings.
Reminding others of their superiority or excellence (real or perceived).
Stopping others from expressing their ideas.
Rewarding those who support them (and perhaps punishing those who don't).
Bullying, or trying to exert power they don't really have.
Tip 1:
10. Ineffectively Scheduling Tasks