Harry and the snake in SS

[potioncat]

No: HPFGUIDX 131889

 martyb1130@ wrote:
snip
We know that Harry is a parselmouth but how is it that the 
> snake  understood what Harry was saying, when he was talking in 
English ? I know that in CoS Harry talked to the snake without even 
knowing of it, but he spoke in parseltongue.

Potioncat:
Harry didn't know he was speaking parseltongue at the duel(COS) or at 
the zoo (SS/PS). And since he didn't know, we didn't know either.