I lost my IPod and I don't know how to use the Find My IPhone app?

I have the app on my IPod but I don't know how to, like, get on the Internet and find the location. If you could help I will love you forever…

1. On your computer, go on icloud.com
2.Type in your apple information
3. Click find my iphone
4.then, you could track your device, send a message, make it ring, or delete everything from there

Keep in mind you have to have Wi-Fi near your ipod so keep on checking in