Dig up for water:
If there is a dry river bed, chances are that there is still water underneath. Water is also likely to be present on the base of a mountain. Dig up on these places. Look for rock pockets which might have stored water from the past rains and which has not evaporated yet.
When you notice animals travelling in a certain direction, follow them. They will eventually lead to a water source. If you spot birds (except vultures) circling over a specific place, you have found a water reservoir.
Look out for dew deposits on the rocks and plants early in the morning. You can just lick them off the rock surface. It may not be much but it will help you survive.
Some varieties of cactus can store good quantities of water inside them but you will have to slice them up which is a difficult job. You also need to be sure that the cactus is not poisonous. If the water is milky, it is better not to drink it.
Look out for plants that grow only in water. If they are growing there that means there is water underneath and that is where you have to dig. Another option is to dig out the roots of the plants, slice them and suck the juices inside.
Prepare your containers if you see a storm approaching. Put them on the ground and let them fill.The storm might not last long but will give you enough water to survive.