I let her play with the spoon while I got the cereal ready.
She wasn't too sure about it, but didn't gag and may have even swallowed some.
On a side note, a funny story about Paul. He would always look at me funny when I would mention that Sophie's first food would probably be cereal. It wasn't until recently that I found out why. In his mind cereal was the same stuff we eat. So he was trying to figure out how she was going to eat Raisin Bran and Captain Crunch.