I have iCloud but I don't know how to use Find My iPhone So last night I was at home watching movies and I went to get on my phone and I noticed it missing. My phone IS on and I THOUGHT the ringer was on until I called it. Many websites say you can download Find My iPhone from iCloud but I'm not sure how to do it.
Go to icloud.com/#find and log in. No download is necessary and your device should be located on a map and allow you to lock/erase/etc.