"I'd say that's enough.  I'm admittedly not the best at investigation, but I have a few useful tricks in that regard."  She did tend to prefer a direct approach, but if they didn't know what they were up against, Homura would do her best to keep an eye out for anything unusual.  

"Just don't go zoning out or playing on your phone so I have to point everything out, again," her sword admonished her. 

"Oh come on, it was just the one time!  It was a limited event, too.  It's not like I'm going to ditch everything else just because I should spend some AP."  Homura looked at everyone and quickly went from indignant to flustered, fiddling with her glasses "Ah, uh, really, You can count on me.  Though I can't really see spirits without Mizuki, so she'll be helping out anyway."  She opts to finish her drink rather than make any more of a scene.