Not only does this let her know your maturity level, it also speaks volumes about your ability to have a daughter, raise a son, or be someone she respects. When she loses respect for you, there is no turning back. It's like that time you accidentally heard your parents doing it. Some things just can't be unheard.
When your date is rude to a waiter, you can guarantee that waiter will spit in your food and theirs. Plus being rude to anyone in the service industry is a major turn off. Be nice-- maybe they'll get you free food out of it.
Chewing with your mouth open. Smacking your lips loudly. Talking with food in your mouth. What are you some type of barbarian? You can follow that Paleo, Crossfit, Caveman diet, without actually being a caveman. Don't forget, your girl can be a cavewoman and only shower once every two weeks. Leave the caveman stuff in the kitchen.
Hold her. Protect her. Keep her from being fumbled to the opposing team... no, wait, that is football. Just hold her in bed, okay? Or on the couch, snuggled up watching a scary movie. You have those nice big man arms and your body has a decent amount of hair. You're like a life-sized teddy bear. Don't deny your teddy bear purpose.
Inviting her to meet your parents is a big step. Leaving her alone while your creepy Uncle Tom talks about the encounter he had with a sultry dancer on the coast, or listening to your little brother talk about his Tinder dates for 45 minutes, is not. Don't abandon her! No woman left behind! No woman left behind!
Guys, if a woman is opening up about her emotions-- take notice. It means she trusts you enough to let her guard down. SO PAY ATTENTION. And she'll be there for you when your Fantasy Team falls apart, and with it, your bank account after those bets you made with your friends.
If it's a photo of another girl's dog, sure, go for it. A photo of another girl seductively looking at the camera with her chest pushed up and a hashtag saying #blessed means you will be #notblessed when you have to find a new girlfriend for liking all of that girl's photos. You should appreciate YOUR girl's photos. Especially the ones she sends you in private...
If you think the girl you're talking to doesn't realize the game you're playing, please realize there have been books specifically written on the game of not texting or calling back to get the upper hand. Sure you'll have an upper hand, that can keep you company when she's moved on to someone whose hands will be all over her instead of yours. Text back.
Okay, I realize that I said not texting back is not okay. But messaging her constantly, and aggressively is annoying and, frankly, a bit clingy. There needs to be a natural balance. Just like in a real life conversation-- one person shouldn't always be doing all the talking.
Put down your phone. Put down your controller. This goes for when you're hanging out with any human being. Not just your date. It's rude. If you're going to play video games, at least invite her. There's a reason there is a Player 2.
Taking a woman's picture without her permission, especially if she just woke up, is a major no-no. It should be punishable with a fine or community service hours. Uploading and tagging her in said photo is definitely worth jail time, though.
Girls are not all angels in this area either but if they took time to clean their bathroom for you, don't destroy it with your hairy, dirty body, gross stains, pee speckles, and all around man-ness. Just pick up/wipe down after yourself. Good? Good.
Talking about how hot another girl is, or anything sexual about her body parts, should be reserved for the deep, dark depths of your brain that never see the light of day. Those thoughts are left in an invisible box of words where you keep the other words you should never utter in a relationship. Like the "b" word, and "I ate all your Nutella."
Stalking her social media, writing inappropriate comments on her photos, poking her constantly on Facebook (Who still does that? STOP.), sending her unsolicited winky faces, and just plain being a creep is obnoxious. Slow your roll, weirdo. There is a block button and I guarantee you she knows how to use it.
Just because she didn't scarf down her plate in under 60 seconds doesn't mean she isn't going to finish her meal. When she says she is finished and that food is inching closer and closer to being wasted in the bowels of the garbage disposal then, yes, it's fair game. Plus there's starving people in this world. No food left behind! No food left behind!