“Now, Harry,” said Lockhart. “When Draco points his wand at you, you do this.”
He raised his own wand, attempted a complicated sort of wiggling action, and dropped it. Snape smirked as Lockhart quickly picked it up, saying, “Whoops—my wand is a little overexcited—”
Snape moved closer to Malfoy, bent down, and whispered something in his ear. Malfoy smirked, too. Harry looked up nervously at Lockhart and said, “Professor, could you show me that blocking thing again?”
“Scared?” muttered Malfoy, so that Lockhart couldn’t hear him.
“You wish,” said Harry out of the corner of his mouth.
Lockhart cuffed Harry merrily on the shoulder. “Just do what I did, Harry!”
“What, drop my wand?”