Avery smiled at Robin's reply - it was rather what she had expected, if she had to guess what he would say - and flashed a more full smile in Keiran's direction. Poor thing would be missing out, undoubtedly. He loved what he did, though, and she wasn't about to belittle it. The patience that man showed with children was astounding sometimes. Especially for a Slytherin.
Looking up at the calling of Robin's last name, Avery raised an eyebrow - her face mirrored by that of her best mate. His expression showed his distaste at the sender or being called away.
Keiran actually smiled when Robin stated his need to leave them - if only for a moment when the man's back was to her best mate - which surprised her to a large extent. Whatever had happened would be the first thing she asked him after Robin left.
Her new acquaintance's words drew her attention, however, and she gave him a graceful smile in return. "And you as well, Robin."
Avery would admit that his offer surprised her, but it wasn't often that she got on with people so quickly, and something about him interested her. If this was meant as more than 'becoming friends for Keiran', she didn't think she'd even be upset.
"Lunch sounds great. Next Wednesday? Send me your address and I'll be there at ten." She announced, smirking at him. Avery had a tendency to just decide things. She wasn't always so forward with guys, but when she was, she tended to get what she wanted.
Robin's seemingly amused "Okay" before he left made Avery grin to herself before moving over a chair and turning to Keiran. If she didn't get the answer out of him, at least she would be able to bother Robin about it later.