Arcane Sight and being seen.

[Dave Young 992]

Your eyes glow blue, and you can see magical auras 120 feet away.
Okay, I imagine that other creatures could easily spot you from a good distance with the spell active.

How about if you're invisible? Or just turned away from whoever's looking your way?

[YuenglingDragon]

I suspect you could have a bit of a dimmer switch built in. It doesn't say "glows with light equal to a torch" or anything like that. If you really need to be sneaky and use the spell just squint. Not much light visible that way but you can still see.

[Mynameisjake]

You should always be careful about allowing flavor text to affect rules mechanics. That way lies madness.

[Dave Young 992]

Mynameisjake wrote:

You should always be careful about allowing flavor text to affect rules mechanics. That way lies madness.

Agreed. They're not high-beams, but someone could notice the glow. I'm inclined to think that if you're invisible, your glowing eyes are, too.

[Mynameisjake]

On the other hand, there's nothing wrong with using the flavor text to provide clues, as in, "The stern looking man standing behind the king has eyes that glow blue."