How to turn on an iPhone without a sim?

I have a Verizon iPhone 4s of which I do not have a sim of. I know that it's a CDMA model if that matters.

Yes, I first got my iPhone through eBay and wanted to use it immediately and didn't wait for the Sim card. You turn it on and you keep clicking the settings you want and it should say to use iCloud or iTunes, you click iTunes and you have to plug it in, I'm sorry I don't know all the steps try Google.