How does the next paragraph end?

How to host a sleepover with one guest 
Ask your parents. 
You need to get permission to invite someone over to spend the night. If you don't get permission, all your planning could be made useless.
Make sure the person you invite is pretty nice and someone you know reasonably well. You can ask a causal acquaintance or your best friend, as long as they are pretty nice and you know them reasonably well, it's fine.