Hey guys can anyone tell me how i Msn i can see who added me recently in time or date or on the last person who added me i have alot of people and someone added me i accepted by mistake it could be a key logger and i dnt knw please can someone help me out thank you.

Unfortunately there's no such feature available.  Nothing logs when people have been added, so there's no way of checking in this respect.

A contact you accept cannot be a keylogger or virus or anything though.  All they can do is spam you messages, but blocking & deleting them (and reporting as spammer) will put an end to this.