How do you add special characters to your nicknames?

One effective option is to download a keyboard with popularity catering to "Special Characters." More specifically, mainly characteristics featuring Unicode, Superscript, Subscript, as well as the Greek, Latin, & Hebrew Alphabet/Text. Try typing "Engineering Keyboard" into the search bar in the Apple Store. Although this keyboard is ideal for Android users, it should provide you with results or selections related to it if it isn't offered for iOS users. If you don't get any results, then try typing in specific keywords related to your search in the search bar. For instance, "Unicode Keyboard" or "Special Characters Keyboard." Hope this helps! Come back after 48 hours, as of 05/24/2023, 12:05p PST/PT, if you're still needing help. There should be specific options available for you. If not, then no newly discoveries were made. "Hats off to ya, mate!"