Not that she had anything to base it on. Just the knowledge that she was having a good time in spite of her own dorkish nature. Now... of course deep down she was having a private moment of panic: what if Lilly tried to kiss HER? Not that she'd mind, of course... but to a skittish girl who'd never HAD a kiss before, this was major.
"You-you should have seen Lexi's face when I told her you asked me out. It's like she was stuck between wanting to be supportive and wanting to tease me for being so nervous."