The subject of how people know things and create categories is interesting and important for people doing therapy, and networking and marketing too. Deft use of these two words is also helpful for anyone looking to rescue a conversation from the abyss of boredom.
Well, maybe not that powerful, but the two words he mentions are specifically chosen for how they take or aim our brains and thoughts in different directions . Using either of these two words will invite the person you are talking with to talk more, and even maybe about something entertaining to them and to you. The two magic words are "like" and "important".
Not groundbreaking huh? Well, wait until you hear what they do.
Let's say they're talking about their favorite teddy bear. If you ask them what they like about the teddy bear then they'll give you a few of the details of the teddy bear. If you ask them what is important about the teddy bear, they will start to talk about how they fit that teddy bear into their world.
If you paid extra-close attention, you would have seen the word 'like' (or dislike) encourages a person to chunk-down and think about the details of whatever they're talking about. Just the opposite, the word 'important' encourages a person to chunk up to a broader kind of thinking, and look at their bear, or whatever they are talking about, and look at the item from the larger viewpoint. The important (no pun intended) thing here are the directions that these words send a person's brain when you ask those questions.
Of course, someone can do just the opposite. When you ask what they like about their car, they can start to talk about 'safety'. Safety is both a higher value (larger thinking) but it's a feature of the safety mechanisms of the car. When they say they they think their xm radio is important, they're also going down in the opposite direction. The point is, that these words elicit responses in those specific directions.
By deliberately asking someone what they like about something and how that is important to them, you'll be learning more about the values they have. You'll also be enhancing their experience of the conversation as they get to talk about what they like and find important, (or moan and complain about what they don't like).
If you want to move to another topic, again because you're bored, then you can use the word like in a different way, by asking them "what else is like that", this could be in response to them talking about the details of something they love (xm radio, the buttons on the bear, etc) or the values that they appreciate about that item (safety, cuddliness). Asking them about something with similar characteristics or other things that satisfy a value will help you broaden your conversations with them.
My last couple of posts have focused on communication, the next few will talk more about networking and networks, but for now . . .Enjoy.

