Question: Can you be at two places at the same time?
	:Of course not! Are you out of your mind?
	:Yes, of course! That is everyday life

Question: Can you be short if your friend looks at you, and tall if your mother looks at you?
	:Of course not! Are you out of your mind?
	:Yes, of course! That is everyday life

........ further human answers :

Question:So you cannot be at two places at the same time; how can you be so sure?
	:It is common sense!

Question:But who taught you this common sense?
	:No one, it's just common sense.

Question:Yes, I know, but how did you "discover" this common sense?
	:I discovered it through life as I grew up.

Question:It means that if you were to have a different life with different experience, you might have a different common sense…
	:Ah!…I don't think so.

........ further ET answers :

Question: How can you be at two places at the same time?
	:What do you mean, it's a stupid question. As if I asked you how could you drink water every day.

Question:But it is very weird to be at two places at the same time, don't you think so?
	:Of course not, two, three…ten. What is weird about that? It is as normal as when you human beings, think of America while being in Japan or dream of being Bill Gates while you can hardly pay for your hamburger.

Question:What about changing in nature or shape according to who is looking at you?

:This is because you, human beings, have a very stupid presumption: that is the world is "out there" and it is evolving in a clear deterministic way independently, regardless of who is observing. In your human model, the objective reality exists and is completely separate from the observer. On the other hand, where I grew up, the objective reality and the observer are tightly coupled; any change in one shall indeed affect the other. So when my friend watches me, he affects the way I look, and my existence affects the way he "sees" me. And when the observer changes, so does the way I look. Actually in your human world, you have a similar phenomenon which you, human beings, call: "Beauty is in the eyes of the beholder."