Just click the green flag once and you can remix and type your friend's name in it if it is his/her birthday or you can put your name (but no real name!)
It is just the basic project like a invitation but for typing I can tell you! STEP 1: CLICK THE 'T' LETTER IN THE COSTUME OR BACKDROP OPTION TO INSERT ANY LETTERS. STEP 2: CHOOSE ANY LETTER STYLE YOU WANT