A manager has to attend numerous meetings and be able to negotiate with many different types of people. Effective management is primarily all about interpersonal communication, which to a large extent is non-verbal. We usually perceive non-verbal communication subconsciously but that does not mean you should pay no attention to it. On the contrary, if you manage to incorporate a few simple non-verbal tricks into your interactions with anyone - subordinate, team as a whole or superior - you could take your communication to a whole new level.
