Jilly,
This guy was "the big business man" moved in the next door to mine in the
hostel in Dongxin border town of China, at that moment he was pretending to
talk about doing business loudly with cell phone, and this is the general way
of China spy to fish or influence their target person I think. The mobile
phone is a useful tool for the Spy's play. Sometimes two or more of them just
talk each other loudly directly near you. I think they intend influence your
psychology or decision or anything they want.