the cooperative action of two things to produce an effect greater than the sum of their individual effects.
Synergy, or synergism, for the most part, pertains to a scientific effect on chemicals and/or muscles. I perceive synergy just as applicable to sociological interaction, or how we get along with others.
This is regardless of personal feelings for another person. There may be situation where a person that you get along with, or are fond of, but can never accomplish a meaningful task with this person. On the flip side, there are people who you may find annoying, or just do not like, but will have an uncanny ability to work well together and get things done. This is not to say that the opposite can not be true for both statements.
So for this week draw awareness of your synergy and identify the persons whom, when you form cooperative action with, help you to produce a greater effect than you on your own...
and the persons that cause you a lesser effect than you on your own.