Confused By The Cabeceo?

One of the things I love most about tango is that the rules are so clear for dancers to follow:

1. The man leads, the woman follows (unless, of course, the lead is shared as the follow does certain embellishments)

2. All instructors teach the same core of tango technique (although it is true that most teachers have their own variations of tango technique)

3. The cabeceo makes the invitation so easy & clear (actually, this is only true in Buenos Aires where the the cabeceo is the rule; if you're in America one has to use a mix of invitation methods such as the cabeceo, verbal requests, extending the hand, hand signals, semaphore and smoke signals)

Okay, so maybe things aren't quite as crystal clear in tango as they first sound in blogs.

So, like I was saying, one of the things I love most about tango is that the rules are so appropriately flexibility...