Use a plant. What this is, is using condesation from plants to get water. what you can do is place any type of plastic bagging or such and put it around a limb of a tree that still has green leaves or needles on it. then after some time you can poke a small hole near the bottom and slowly fill anything u can drink from.
Using a solar still. Useing a plastic sheet across a hole anchored down by rocks or dirt place a small rock in the middle of the sheet to create a "track" for the water to travel on (oh make sure you place a drinking cup under the sheet before you anchor it) if you want to make it slightly easier you can use a drinking tube like in the picture I had gotten from howstuffworks.com
Next up is edible plants then, snares and traps......