You do not share your address, when you are away (as in holidays), what your regular schedule is (Like "We always go out for dinner Saturday night at 8pm" or "I have a class every day at 2". You do not share your banking info (name of bank etc.) You do not share how much money you make or what your assets are. (like "I have a stamp collection", or "I collect Gold Spanish coins ") those were examples, personally I don't collect anything except old bills.
You don't share any personal information!!