I am a hugger (not a pecker) with those whom I know will accept it, embrace it, offer it, etc. I also will normally only do so with those whom I already know.
For example, I have 1 cousin who will most likely never be a hugger and yet his brother is a huge hugger.
So, really, for me, it depends on the other person. That said, I would like to do more hugging as I 'grow'. But, I do need to be a bit careful as I have a chronic pain condition that affects my upper right back.
Otherwise, I always seek out hugs from those I deeply trust when going through difficult times.