Will you tell others you meet for the first time your personal information, like
your telephone number or your address?
I won't tell the guys I meet for the first time much personal information. For
example, on an hours' bus riding, I may have a conversation with a fellow
traveller to kill time, talking about our hometowns and jobs. If asked for further
contact, I may leave a telephone number. But I won't tell him my working or
living address or further information, as I can't completely judge whether the
guy is reliable.