When is it appropriate to hug someone?

Do you think that neurotypicals hug more often? Do neurotupicals see hugging someone as equally affectionate?

I think they hug because they think they are expected to - look at the rise of 'man-hugging' - this NEVER happened in the UK - it's an American import from the last 10 years or so - now it's everywhere - especially on tv.

A nod or wave from the other side of the room should be sufficient..  

I think they hug because they think they are expected to - look at the rise of 'man-hugging' - this NEVER happened in the UK - it's an American import from the last 10 years or so - now it's everywhere - especially on tv.

A nod or wave from the other side of the room should be sufficient..