Andromeda was staring at the girl playing the music when she heard someone's voice "Hi! I'm Lily" 

Andromeda turned and blinked "oh, you're talking to me?" she smiled suddenly and turned fully towards the girl "hi, I'm Andromeda, this is really pretty isn't it? I've never been to a party before so," she suddenly realized she had just talked more in one sentence then she had since she got here and blushed beneath the veil. 

she looked around at the countless people, "there's so many people here, i never even saw this many people, in total, before i came here" she glanced back at Lily, smiling.