There are large windows on this side too, however, so his reflection easily catches up to him and continues asking him about--are you ready?--his erectile dysfunction. We, the viewers, then discover that the man is trying to keep the conversation hush-hush, not because his reflection is trying to talk to him on a busy street in broad daylight, but because of WHAT his reflection is trying to talk to him about.
When I realized what was going on in this ad, I asked my friend, "Are we really watching an ad in which a man is having a conversation with his reflection about erectile dysfunction?" My friend concurred that we were.
Listen, Mister, if you're walking down the street in the middle of the day and start having a conversation about your penis with your reflection in a window, your problems may go a little deeper than erectile dysfunction.