This one is simple but so essential. Countless stories have been told around the world about the man who lost his chance due to messy eating on a date, not saying please or thank you, or being rude to someone in public. Sometimes it's as simple as picking up a knife and a fork and not using your hands to eat dinner.
Women really appreciate a man who knows his manners and remains polite in frustrating situations. After all, most of us are looking for a partner we can confidently take home to our families, so a rude boy isn't going to make the cut. Try working on your manners if you feel this might be your downfall. Keep your cool in tough times and always eat with cutlery and you should be more than fine!