You will need
- - computer,
- - Internet,
Set the desired name in all search systems of the Internet. For example, Google.com and Yandex.ru often give different results for the same query. Use writing not only in Cyrillic and Latin. If your friend went to live abroad, his name looks different now.
Add in the search bar the name of the person. Even if the surname is quite rare, one is not enough. To enter a name is not required, only if you're a celebrity. Then the search engines will give the link in the first lines.
Save all found useful information. It is possible that you need it published, performed, posted his own summary. Using these facts, you can try to find him already using the phone and found the coordinates.
Search the most popular social networks. Part of answers you will be given search engines. For example, Google will tell about registered users in its network Google+ and Facebook. Yandex will provide information about entry into the "My circle", Mail will tell you about the participants of the "My world".
Log in to your account in "Vkontakte" and "Classmates" to specify there search for the desired surname. If you are not their user, or have to register or ask a favor of someone you know who use these networks.
Add to the search query not only the name and year of birth and intended place of residence. In this case you will have to browse a smaller amount of unnecessary information.
Remember who this man could save the relationship, to correspond. This is necessary if the search did not return any result. It is possible the person prefers to use a nickname or alias. Then you have to use another tactic: look for "about".
View lists of friends, former acquaintances wanted. Perhaps someone has already established contact with him. And you will find a person not on the names, and photos.
Refer to the help of specialized resources if your own searches have not yielded results.