I just gave my receipt to the lady at the window, then she let me signed through the computer. I got to repeat it 3 times because I got confused and forgot what signature did I use, LOL! The lady told me I have to sign the same signature I used on my passport. I told her I wasn't sure what signature I used. Luckily, my passport already has my signature stored in it. The passport has somewhat like a computer chip installed in it like my US passport, so both passports are now digital-scan capable :).
All is set and complete for my documents in time for my upcoming trip to the Philippines this November.