If a guy hugs you for kind of a long time (7 or 8 seconds at least)?

if a guy hugs you closely for like 7 or 8 seconds at the least while squeezing just a little but not like hard or anything, what does that mean (and he turned around to talk to a friend while he was still hugging me with both arms for like 3 or 4 more seconds)

and...

what does it mean when a guy puts his arm around your shoulders. and what about around your waist. is there a difference?
If a guy hugs you for kind of a long time (7 or 8 seconds at least)?
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