as you start of you need to need to prioritise go find food and water These items can be found at stores and houses on cabnets and also on the floor . If you can see people try to make sure they are not bandits as they will mostly kill on sight only engage if you have a weapon . Friends can be hard To come by but are very handy in battles or just if your lonely . A hero will help you by bandaging you or giving you items .
weapons can be easily found At military bases under the beds or on top of the cabinets
and that's the basics of starting of at dayz standalone.