How would you know if you are a witch?

There's really no certain way to tell if someone's a witch other than asking them(and they still might lie) and that can be rude so be careful and polite about it. Some people who identify as witches dress in ways to display their beliefs, such as wearing pentacles or other symbols. However, plenty of non-witches do that too so it's not exactly a great way to tell.

But, witches still look like regular people. Most everyone is a witch/wizard, but, their magic is either too weak to even cast a simple spell or they haven't realized their power yet (usually the first one). These 'easy, simple' spells include love spells and hexes.