Hex's

How do you tell which hex's are on an enemy? Are you supposed to guess?

Pretty much, yes. There's no way to see what hexes are on anybody but yourself, only whether or not they are hexed(same goes with enchantments).

You can tell what class the hex is from, though. There will be a colored dot floating around in the hex/enchanment cloud. The color of the dot represents which class the hex/enchantment is from.

I haven't paid enough attention to know which color stands for which class, but I'm sure someone here knows.

Is there a way to tell when your own Hex you've cast on a target is no longer on them? I sometimes cast Life Siphon on something and theres no visible cloud around them that I notice.