I think you should say nothing unless she asks you about it, and then be honest, tell her you thought hers was better...and yes dude, flirt a lil...I find you get a lot further with everything if you are sort of flirty with all girls...I mean, what harm can possibly come from being nice...and who doesnt like it when people are nice to them...

people in general should be more nice...that, and she may tell her friend how nice you were about the whole thing...then not only are you a nice guy, but since you yourself didnt show her (the friend I mean) how nice you are, you are modest as well...

no, seriously tho...I think everyone should just be nice...and listen to other people...I mean,a while ago I saw lots of people on a Monday morning, as I usually do on Mondays, and I asked how their weekends were, and what they did...but I couldnt have told you what a single person did over the weekend...since then I have started a whole be nice...and listen approach...I'm gonna change the world