Godric is aware of Eric in the same way he's aware of himself; it's impossible for either of them to hide from one another. Were he in a truly unapproachable mood (which happens rarely when it comes to Eric), a warning would have sliced through their bond, and Eric would know to make himself scarce very quickly. No such warning comes. Instead, the bond feels something like resignation, and Godric's body language remains open. Eric is welcome, however much Godric doesn't think he wants company.

After a moment, Godric breaks the silence with a quiet intonation.

"Why do you think they do it? The glitches?"