Every time you interact with somebody else in this world, you are in a relationship. Some are long, some are short, some are great, some aren’t as great, but the one constant is that every single interaction is a relationship. As one of the parties involved, you get a huge choice in how this relationship goes.
We already know that relationships tend to come back later. Goodbye is almost never goodbye, if it is then you likely have mutual acquaintances with a person anyway. People and interactions always resurface. So, think about making others inspired. Decide every time you meet or interact with somebody, how can I make this great for them? We also know that the world is our mirror, so an interaction great for someone else is also great for us.
Leave others inspired. You are going to leave an impression one way or another, why not make it a great one?