Growing up in PA, I was always taught to ask permission. I'm currently going to school at UNH Durham (right down the road from you) and I have to be honest, the thought of just walking on to any unposted property doesn't seem right. I stick to university or state land as I don't know any residents well enough to seek permission to hunt.

I guess I understand the notion of "If its not posted, its open" in areas further north (and in Maine) where paper companies own much of the land and landowners may not be around to seek permission from, but I don't think that gives anyone the right to tramp through private property, especially in more urban areas.