Dumbledore's Invisibility

[corinthum]

No: HPFGUIDX 73164

Meltowne wrote:

> He made it clear to Harry that he knows how to be invisible without a 
> cloak - and in several instances, he seems to know of Harry's 
> presence in the room when using the cloak. 

Am I the only person who didn't intepret Dubledore's statement
literally?  I suppose that in a magical world such as this, the
literal interpretation might be the obvious one, but it really never
occurred to me until people started using Dumbledore's supposed
invisibility talents in their theories.

When Dumbledore said he didn't need a cloak to become invisible, I
interpreted it to mean he didn't really need to be invisible to be
unseen.  We have been given glimpses of his spying techniques:
portrait spies, those still-unclarified silver instruments in his
office, his extensive if not all-encompassing knowledge of Hogwarts. 
I think it very possible that Dumbledore was simply hiding, not
invisible, when he observed Harry and Ron with the Mirror of Erised. 
His comment on how near-sighted being invisible makes one seems to
support the idea that if Harry or Ron had looked the first time, they
would have seen him.  After all, Harry probably would not have noticed
Dumbledore the final time if Dumbledore had not spoken.

-Corinth