Repost from BHB- HELP with a saying..

We are doing the Polaroid Guest book, and on the table with the camera/book, We bought a small little easel/stand and a piece of cardstiock. I want to print something liek instructions on it...But I cant think of what to write?

Do I just say...Please take a picture and sign the book? Or is there something creative I can say??

TIA!!!