** How do you get a deal at a gun show when you really don't know prices? **
Ray,
You need to know at least a reasonable range of prices for any particular gun that you are interested in; or if you really want it and are willing to pay what they are asking, then just buy it.
If I have a gun in mind that I am interested in buying, I look at some websites that sell guns on the internet and see what they are asking to get an idea of what asking prices might reasonably be (though there is sometimes quite a bit of variability here).
A lot of times, the best deals are from people just walking around with their own guns; I usually don't find a lot of good deals on the tables (though there are some exceptions).