Live Quests. On very rare occasions in Xenoblade, you might stumble upon a live occurring quest while exploring the world. What this means is that if you are at the right place, at the right time, in the right conditions, you might trigger a quest. It will pop up and tell you the details and has to do with a situation occurring close by such as you have to save somebody being attacked by a monster. These appear to be quite rare but none the less, are a nice touch.
Xenoblade Chronicles tidbit of the day # 35