I had two incidents .
johnto my skype account and i exchaged few messages. Then i went home and was checking facebook . Then at right side i saw
Do you know johnand it was his acoount
Then i had stored one person in mobile phone with name and phone and i never had any contact with him. But i still sometime see his name in do you know him . I have no mutual friends with as well.
Does it mean that facebook read my phone contacts and skype messages