Definitely healthy, pretending nothing abnormal was going on. In the case of Beacon Hills, it probably was the best approach - they were at least a little less likely to end up hurt, in such a case.
"I can help with studying, if you want. It's one of the few classes I actually understand." Don't get her started on physics, or math, because she was struggling slightly in those topics. But the others weren't too bad. "You've lived here all your life? Must be nice."