According to Forbes: Body language can mean a lot but...
The biggest misconception perpetrated by many so-called experts is that specific gestures – of your hands, say – have specific meanings. Rather, gestures are ambiguous. They can mean many things.
If I cross my arms, I may be signaling my defensiveness, but I may also be cold, or simply tired and propping myself up with my arms – or just getting comfortable. And I could be signaling all those things at once. It’s possible to be simultaneously cold, tired, defensive, and desirous of comfort.
