So, I'll start with the head. First you want to start with a circle, then add the chin. Females will have more pointed chins than males. The neck should have a slight curve to it.
Next is the arms. Males tend to have bigger and more defined arms than woman.
Then we move onto the body. Women have curves that can clearly be seen, whilst men are typically straighter.
Now we have the legs, which had two sections. The top section should be larger than thr second.
Now we have feet. Try and make the foot even with a slight curve on the bottom and on the top. The heel should be round, like a circle.
Now we have hands, which are usually the hardest to draw. The thumb has two parts, whilst fingers have three. Remember this and you should be good.
I hope this helps!