I guess I meant, why make up a story? Just say they’re for you. It isn’t just a choice of fabricating an excuse to buy a pair of heels, or being remote and secretive. As you say, she gave you a conspiratorial smile. You could have smiled right back and said Yup! Who knows where the conversation would have gone. Maybe nothing more than another smile, but you could have swanned out of the shop , with your parcel tucked under your arm, as though you owned the place.