This StalkerTools method is a hot one and turns many heads. Once you have the family name of someone, you can use
this method to find out all information like where they lived before their current address, who lives and lived with them in the same home, email address connected to them and the others living in the same home, phone numbers, the value of the property they live in and so much more.
First: Go to http://spokeo.com
Second: Enter the family name of the person you are looking into. If you have a state/city even better
Third: Look at the results you get on spokeo (a paid membership unlocks plenty more)
Fourth: Narrow down the result that belongs to the person you are looking into, based on their first and last name, the city they live in or state. Spokeo will show you past addresses this person lived at and will show you all family members/others living with them at the same address. You can now start telling the person that you may know someone in that list, like their sister, etc. The person will agree or disagree with you and help you to narrow down the results even more. Upon nailing the correct result, your subject will be uncomfortable that you somehow know so much about them and their past, however, mission accomplished.