How Did McGonagall know?

[bohcoo]

No: HPFGUIDX 82886

OOP, ch. 11, page 214:
"'I'll tell you what it means,' said Hermoine through gritted 
teeth. 'It means the Ministry's interfering at Hogwarts.'

"There was a great clattering and banging all around them; Dumbledore 
had obviously just dismissed the school because everyone was standing 
up ready to leave the hall."

OOP, ch. 12, page 249, Professor McGonagall speaking:
"'Didn't you listen to Dolores Umbridge's speech at the start-of-term 
feast, Potter?'
"'Yeah,' said Harry. 'Yeah. . . she said . . . progress will be 
prohibited or. . . well, it meant that...that the Ministry of Magic 
is trying to interfere at Hogwarts.'

"Professor McGonagall eyed him closely for a moment, then sniffed, 
walked around her desk, and held open the door for him.

"'Well, I'm glad you listen to Hermoine Granger at any rate,' she 
said, pointing him out of her office.


When Hermoine made that comment to Harry, it was during the 
continuation of the speech Dumbledore had been making when 
interrupted by Umbridge. All the teachers where still sitting at the 
top table, listening to Dumbledore complete his welcome to the 
students. There is no way on earth she could have overheard 
Hermoine's quiet statements to Harry at the Griffendor table.

So. How did she know what Hermoine said to Harry?

Curiously,
Bohcoo