I can recommend one that will work no matter the circumstance.
The next time you are having a conversation with somebody try to understand what can you do to help with the well being of that person. It does not necessarily have to be a material gift, or giving, sometimes it may require you to walk away from that situation very carefully, very gently.
The key will be to listen very carefully to the other person, not just the words but much deeper. Imagine that the universe (or God if that is easier for you) is trying to talk to you through that other person seeking your assistance. If you can do that, if you can just listen without your prejudices, you are guaranteed happiness!