It's a bit like walking down the road and seeing someone wave at you. You wave back and then realize you don't know that person, and they were in fact waving at the person behind you. You therefore pretend that YOUR friend is behind the original waver, shout 'hello', and, having passed the waver, step into someone elses driveway to make it seem as though your friend has gone into their house. You hope like hell it is not the driveway of the original waver or their true wavee.
Well, your scenario wasn't quite that bad, but you get my drift.
It's a bit like walking down the road and seeing someone wave at you. You wave back and then realize you don't know that person, and they were in fact waving at the person behind you. You therefore pretend that YOUR friend is behind the original waver, shout 'hello', and, having passed the waver, step into someone elses driveway to make it seem as though your friend has gone into their house. You hope like hell it is not the driveway of the original waver or their true wavee.
Well, your scenario wasn't quite that bad, but you get my drift.