Molly is "ugh" about Lucy, but will pretty much leave her alone. Mostly. :P Ian probably isn't too chum-like - he prefers people with a bit more of a bite to them - but will be nice to her. Penelope of course will be nice.
Ian will probably be friendly-ish to Evan, simply because Evan amuses him. Molly eyerolls and mutters about that detention from last year. Penelope backs away slowly and is thankful that he wasn't one of her contemporaries.