How to do the arm thing in scenearys

So some of you have noticed in some scenearys,the person has arms in a diffrent persition.

When you ask them about how to do it,they allways say, "Learn yourself!"

Well heres some tips on how to do it.

1.drag you medoll and put her standing in normal persition.

2.grab another medoll and turn her diagnol,so it looks like you've got a arm on the side of your face.

3.Cover the second body with anything,so it dosen'tshow any hints of the second body.

At the end it should look like this...