easy and interesting. Everyone has his own hobbies, like playing ball games, listening to music, drawing and so on. They can bring us pleasure and make us relaxed. We have a lot to say when we talk about hobbies.
Lucky money, however, isn't a proper topic for us, because it's too personal. What's more, not all of us can get lucky money. Some may feel unhappy if we talk about it.
So talking about hobbies is really a good choice.