When Socrates, spoke people listened and became informed. You too can assume the mantle of Socrates and when You speak people will stop and listen, or seek out your sage advice...
To build rapport, demonstrate you care...
The secret to rapport, is relationship, altough there are methods to accelerate the appearance, the real key is finding modes to meet on common ground, and reflect concern.
Finding joy in your day to actions, come closer to real success, than achievment of most other goals. If you cannot connect with your family, or team, you cannot influence them.