It is the highest activity in all life. It is the habit of creative cooperation. In short, it refers to a teamwork. The combined working together is greater than the sum of the efforts of the parts. The essence of synergy is to value the differences. You may be smart alone but together you can be brilliant. Two is better than one.
Everyone has different views over the same object. Someone may see the young lady while the other may see the old one. It depends upon their own perspective. Whatever the options or views they have, always respect them. All people see the world not as it is but as they are.
If two people have the same option, one is unnecessary. You don’t have to agree with them. You can simply affirm them.