making the bones

first off there is making the arm here is a simple start of using the joint tool to make a rough depiction of the arm

note: you can always put your desired mesh in first so that you can get a good idea on how well the bones fitinside the mesh

starting from the clavicle (shoulder bone) all the way down to the five fingers

in order to make the fingers you need to keep re-selecting the wrist joint and create a rough finger/thumb bone

once your hand and arm are complete NAME THEM! this will help later on