Like most other qualities, friendliness varies among individuals. Both of my easter eggers like to snuggle, but my australorp usually attacks me (although she still likes to sit on my legs if I'm sitting on the ground). The australorp doesn't bite anyone but me.
Great advice from everyone above!
I thought mine didn't like me either when they were around that age and found all of the above advice applied. It took me a month or so to realize they prefer me sitting on the ground with them like I did when they were babies. We've slowly moved up to...