How to Sign the Certificate of Citizenship

[wrangler]

I had my interview last Monday in Atlanta and my IO approved my case. She also scheduled for Oath ceremony the same day and they gave me the Certificate.

 

The IO didn't ask me to sign on the photo. However on the certificate next to my photo, they have added a scanned copy of my signature (my regular signature like the one on my N-400 application or the way I sign bank checks and other documents).

 

There was no instruction given to us that day as to how do we sign the certificate. Any thoughts??

 

Thanks!