Ron gasped when he noticed Hermione and he blushed an even deeper shade of red, glaring at George. "Shut up right now," he warned his brother in a low voice. "Nothing else about shagging, do you hear me?"
Then, in his louder, regular voice, he said, "Hermione! Hey!" He put a smile on his face and went over to her, proving to Harry and himself that he could and would do this.