We recently interviewed a great person for a PR position. You could tell that her passion was event planning, because she glowed when speaking about it. She organized events... just for fun. This is special!
Next time you are in a meeting, or conversation and you notice someone light up (eyes open wider, they lean closer, smile more), pay attention! You have found a passion or strength that they may not have realized. Say something about it! Here are some questions to ask: Does it matter when/how/why you do this activity? Does it matter who you do this for? The specifics are important! Pay attention to this - help someone light up every day!