How can you tell if a girl is going commando?

You just know.

Yes, you do!

Yes

well if your parents are really strict about dating, it might seem hard to tell then at first. But you know, just come out and say it. Remember, your parents met at one point, and i' m sure they...

It is double her height at a very young age - something like 2 yo or thereabouts but check it.