Q. [Expo ID Registration] I do not wish to register my gender. A. Gender is an optional field, so you can register your Expo ID without selecting it. Related articles [Expo ID Registration] Why do I have to enter my personal information? [Expo ID Registration] Does country of residence mean nationality? [Expo ID Registration] Can I use a landline phone number? What personal details do I need to register in order to obtain an Expo ID? [Admission Tickets] By when do I have to make the convenience store payment?