Do not believe

[WASD]

When you believe in something, it becomes something you carry with you at all times.
You may disregard things that are true because they do not match what you believe.
If you encounter something new you may ignore it because you have spent so much time and energy on your current beliefs and don't want to waste that.

That's why my way of thinking right now is do not believe in anything, do not have beliefs. Instead just have thoughts and understandings about things. If you change your mind there is no belief you have to fight with.
I recommend trying this mindset and would like opinions on it

2 videos that I both strongly recommend that explains this better than me:
http://www.youtube.com/watch?v=1S8AKHhNehU and
3:40 to 8:25 in http://www.youtube.com/watch?v=jhErdDT3odA&t=3m40s

[CFTraveler]

The problem is that disbelief is a form of entrenchment, as much as belief is.  That's why I like the 'provisional belief'.  I'll believe in something if it serves my purpose.  Not blindly, but I'll consider it can be true if it seems to be.  If however, it no longer serves, it gets the circular-file treatment.
That's easier than deciding (for example) to not believe something, and then ignoring data that supports this belief.  That's the basis for a lot of pseudo-skepticism.

[Xanth]

For the most part this is also how I like to work too.
Obviously, you can't get rid of all of your belief in such a fashion...

But for the most part, don't believe or disbelieve... put it in the "maybe" pile and wait until there is sufficient evidence or proof to form a conclusive "known" later. 

[WASD]

That's easier than deciding (for example) to not believe something, and then ignoring data that supports this belief.  That's the basis for a lot of pseudo-skepticism.

It's not really like that. There are for example a lot of data showing that the earth is round, but I don't "believe" that it is round or not round. I think the earth is round based on all that data, I'm not ignoring anything. You can still have opinions and thought about what is correct and incorrect but when it becomes a "belief" it becomes a problem as I tried to point out in my first post.
I'm not familiar with pseudo-skepticism.

But for the most part, don't believe or disbelieve... put it in the "maybe" pile and wait until there is sufficient evidence or proof to form a conclusive "known" later. 

That "maybe" pile is nice But we can never "know" anything as my first link points out. You can be 99.9% certain but you can't reach 100%. So I try not to use the word 'know'.

[Volgerle]

it's best to avoid black/white views and attach percentages to hypotheses, that's what I do
i also leave things open if i cannot weigh it at the moment

many people have problems with this, it makes them insecure if they cannot go for a 'belief' or 'conviction' 100%
they cannot leave things open (which what you do when you are more open-minded), but always have to decide (or "know") on the spot, it's either hot or cold, black or white, nothing in between, they decide to "know" (how can one 'decide' to know??)
sometimes their decision is so pre-fab (by dogma and beliefs) but they don't even recognise it, they cannot think out-of-the-box of their rigid system
that is what creates so much problems in society, to accept that the world can be shades of grey instead of black OR white only,
also, people like polarities (either-xx-or-xx instead of xx-as-well-as-xx) because these are the solid foundation to create and stir up conterversies, and people like controversies, that is why they get together choosing one corner (to fight the other corner)

and to some, I guess, being balanced and "in the middle of the road" is just plain too boring

[Lexy]

But do you believe you can astral project?

[Summerlander]

I believe I can alter my state of consciousness. And all I can truly be sure of is uncertainty.

[Dazino]

To "understand" something, you automatically use beliefs. They are a part of life, unavoidable.

I'd prefer something like "Be flexible in your beliefs." or "Know that beliefs change and grow constantly" 

[WASD]

But do you believe you can astral project?

Depends on how you view AP. I think our mind can go outside the body. But I try not to make it a belief. I realize that I don't have much evidence about it. So I can't give a yes/no answer to that like Volgerle explained.