When Emily said that they should have a sleepover, the group had different reactions. Alex was as usual showing no change in his stoic expression, but in his mind he was wondering what Emily was planning by doing this.
Rachel on the other hand, had a lot of experience with people like Emily. So she simply sighed already accepting whatever will happen, it was no use no matter how much she complains. Her mother would most probably allow this as well.
Evangeline on the other hand was thanking Emily in her mind for this opportunity. Though she was really worried about Rachel, she still wanted to somehow use this chance to get close to Alex.
Oliver was getting excited as well. This was going to be his first time having a sleepover with his friends. He always wanted to do this, but one needed friends first. So now that he has some friends this experience was making him feel happy.