how to know if my friend entered my facebook account?

[Stelios]

I called my friend from my grandmother's house while i was on easter holiday and i remember telling him that my grandmother's number is my facebook coed so one day he called me and he told me i know your facebook password.We had no internet connection on the village and know i ask him and he doesn't answer and i tell him that if i find out that he entered i will report him and he is laughing.I changed my password of course and i wanna know if i can find out if he entered



thanks

[Ronnie]

Facebook "active session" contains info of logged device .
Go to your privacy settings >> active session , there you will get all the info of logged devices . For deleting all the previous devices click end activity