Btw you can be the Death Eaters too
James' voice lacked its usual confidence, which frightened Lily almost more than the sudden appearance of the Death Eaters. His hand over her wrist had tightened almost painfully, and she wriggled her fingers a bit to get him to loosen his grip.
Basic defence. Come on, Lily. Her hands were sweaty on her wand. She was afraid that even if she managed a spell, she wouldn't be able to wave her wand correctly. And think. Think!
The Death Eater glided towards them, and Lily saw a flash of silver as his terrifying mask caught the new moonlight. "Names," it repeated, raising its wand. Its voice was deep and gravelly; Lily guessed it was a man.
She knew they were checking blood status. It was all over the news: Voldemort's followers looking to 'wash away the filth of blood traitors'..." In other words, Muggle-borns...those associated with them...
Lily tried to find her voice. "Lily...Dearborn," she got out, calling out the surname of a boy in their House who she thought was half-blood.