Silly girl, drinking things that fit her chosen persona instead of drinking things she actually liked to drink. Ianto watched her order with a fairly neutral expression on his face.
"No, not in the slightest. I'm here enjoying the music. Rather fond of the stuff they tend to play, to be honest. I just happened to catch you chatting up that poor dumb bloke and wanted to save someone else the embarrassment you made me go through. That's all."