Coy seductive glances are for nerds like Natalie Portman. Popular girls like Lindsay Lohan take pictures where they stand around in slutty clothes and then bend over to get fucked. There's no room for subtlety. You need to show your tits and stand next to the number 69. In the future I'd also recommend she do the blowjob motion where she brings her hand to her mouth and pushes against the inside of her mouth with her tongue.
(image source = outtakes from lindsays photo shoot for love magazine)