Are they seen as "weirdos"??
Yup.
My parents were shocked when I said that I was dating one. My brother demanded that I prevent my boyfriend from trying to sell him anything religious. My dad is always saying, "Yeah, he's strange alright...".
When I was little, I remember that there was one JW in my brother's class, a year behind me. We all knew who he was, it was a small town and a small school, everyone knew everyone, but he didn't have any friends or anything. He didn't associate with anyone, he didn't attend birthday parties or anything like that, and he didn't celebrate Christmas, which I thought was sad.
We were told that he was a Jehovah's Witness and that he didn't believe in birthdays and Christmas. That was all I knew about it, and even back then, I thought it was weird. Later, I learned that JWs were those people who came to your door at the most inconvenient times to give you magazines and try to convert you. Yup, always thought they were weird.
Ask anyone around here about the Witnesses, and the answer you'll get will definitely contain the word "weird".
-Becka :)