Simple questions. I do personally because the universe is infinite supposedly and everything that makes us can be found throughout the universe.

Do Aliens believe in us?

I do. I can not believe that there is no other forms of life outside of Earth.

Yesh I do

Of course.

The truth is out there. *X-Files music plays*

I'd say yes but as the quote goes, "Two possibilities exist: Either we are alone in the Universe or we are not. Both are equally terrifying."

Do I believe that aliens exist? Yes. Do I believe that they've visited Earth? No.

As much as I believe in Dinosaurs.
Of course we haven't found any alien bones, yet there are an estimated 8.8 billion earth like planets in our galaxy alone. What are the chances there was/is/will be no other intelligent life out there.

No, but that doesn't mean I don't think they exist. Quite the contrary; I think there's a high probability they do exist. That is, my stance is that there's a certain probability they exist and that's it. No need to resort to simple a simple 'yes' or 'no'.

Considering how vast the galaxy is, and that there are different galaxies, there has to be life somewhere out there, outside of Earth.