What did people think witches looked like?

If you're talking about the past, then people used to hate them. They accused everyone of being a witch. There were terrible trials to see if one was a witch. The accused were tied up, and dumped off a cliff into the sea or a river. If the person sunk and drowned, they were innocent. If they floated and/or drowned, they were guilty. So everyone died, regardless. They were objected to barbaric practices, even though said witch never intended harm to anyone or anything. (Part of the Pagan religion says that nature should be respected, and the well known 'the good that you do returns three times, but the bad that you do returns also three times'. The large majority of witches stay true to this but some hurt others because they think they are superior.) So, people used to loath witches and think they were unclean, sacrificed humans, worshipped the devil and unbelievably, commit incest. The public view has changed greatly and now they are largely accepted as part of equal society.

Hope this helped you :)