I.e. means "in other words." You may have meant e.g. which means "for example." With either meaning, I'm not sure what you are asking though. Do you not know what birthdays or phone numbers mean, are you asking for people's birthdays or phone numbers, or are you confused about if you have to enter your birthday or phone number somewhere on this forum or in game? If you can clarify, I'll be able to help you better. XD
