What's the quickest way to make a girl cry?

Um, i have never intended to make a girl cry in any way. So i can tell you how not to make a girl cry?
1. Do not comment on her body (if she's skinny, fat or has small stuff or too big stuff) that is none of your concern.
2. Always try to compliment her. Complimenting someone is different to flirting so knowing the difference is important.
3. Do not insult any of her family members no matter how pissed you are at her. Also, do not blackmail her or violate her trust. It really gets them worried and mentally unstable.
4. Do not comment on her physical appearance unless you have something good to say. Girls are highly sensitive about themselves and many are too insecure about their looks and even their bodies. So avoid doing that and appereciate them for whoever they are.
5. Do not tell her that she eats too much because even though you might think they eat too much but it is nothing compared to the diet of a man. So let them eat whatever they want to eat and no matter how much they want to eat in peace. Or else they will leave eating by getting insecure keh "Mai kaheen moti tou nahi ho rahi?"
6. Appereciate their clothing choices and especially make up if you feel like or just don't if you don't. But don't say anything that might hurt her in an offensive way.