If you consider that your acquaintance is not too careful and excessively carelessly handles information, you can easily teach him to be more careful. The most harmless way it is possible to call change of the password of its mailbox with the subsequent return and an explanation as it was made. Believe, he at a distant day will forget it and from now on will be much more careful.
Instruction
1. If you do not know either the login, or the password from its mail, first of all it is necessary to learn the login. For this purpose you can ask it about it under a pretext to send any important document. As soon as you have on hands its mail, can start the second part of the plan.
2. Register the new account in social network on which your friend most often communicates. The best option is to be registered under the guise of the female person because it will be so simpler to find that information which interests you.
3. Within several weeks communicate from this account in network, try to communicate as much as possible and more often. Add new friends, update the statuses, add a photo and video, say, conduct active life on social network. It is necessary not to cause suspicions in your friend further.
4. Add your friend as a friend, pretend that he interested you. Maintain a distance, but at the same time sincerely be interested in his hobbies. It you awaken response interest. Maintain easy, unostentatious communication.
5. To change from dialogs to a subject which concerns a confidential question and ask the question similar to confidential. Having received the answer and having made sure that the answer approaches a question, change the password. After that interrupt a dialog and delete the page.