While told instead of shown, my impression was that at least in the gap before 1st year, while locked in 2nd, and staying at the Cauldron 3rd Harry does talk to her quite a bit, and pet owners extrapolating involved responses out of their critter cocking its head at them and blinking or any sort of vocalization is hardly rare. So, Harry may well imagine it to be so, whether true or not.
(he said, while the little dog on his knee huffed at her silly human playing with that THING again instead of her...)
--
"Anko, what you do in your free time is your own choice. Use it wisely. And if you do not use it wisely, make sure you thoroughly enjoy whatever unwise thing you are doing." - HymnOfRagnorok as Orochimaru at SpaceBattles
woot Med. Eng., verb, 1st & 3rd pers. prsnt. sg. know, knows
(he said, while the little dog on his knee huffed at her silly human playing with that THING again instead of her...)
--
"Anko, what you do in your free time is your own choice. Use it wisely. And if you do not use it wisely, make sure you thoroughly enjoy whatever unwise thing you are doing." - HymnOfRagnorok as Orochimaru at SpaceBattles
woot Med. Eng., verb, 1st & 3rd pers. prsnt. sg. know, knows