Social Report indexes all of the people you ever come across socially and inputs them into a searchable address book. Here is how to use it:

1.Click on the "Address Book" tab

2. Start typing the name of the contact and the system will quickly locate them:

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3. You can also filter your search results by Network.

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4. Now you can click on the name of the person and details about that contact show up. You can now perform a few actions depending on the network origin of the person such as send a direct message to the person or a public reply. 

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(Note the link shortener which may come in handy)