incident on an msn chat conversation

[kvc]

while chatting to someone in windows live messenger, how did the person know of the others contact list? how did he grab that contact list to know who all are there in it? like he said the names as if there was a list in front and was reading it. any ideas people.... need help here question of someones privacy here. please help.

 

[shashikumar.22]

please tell us even i wan to know how to do this???

ppl please tell or share your ideas