1) Don't Get Drunk
Make sure you don’t have one too many drinks while you’re out on a date. It can be quite easy to lose track how many you’ve had, especially if you’re having a great time. If you are not sure that you can control yourself, opt for a non-alcoholic beverage instead.
Having no drinks is always the safest route to take on a first date.
2) Don't be a Womanizer.or a Manizer
On your date there is nothing more annoying and disrespectful than a roaming eye targeting members of the opposite sex. Keep your eyes on your date.
3) Don't Discuss Controversial Topics
Talking about politics, religion or hot debatable topics is a sure way to get off on the wrong footing with your date. It's also important not to get emotional.
Now isn’t the time to share too much. Don’t talk about your “exes”, and don’t do a rundown of everything that’s wrong with your life (major turnoff). Keep things light and positive.
4) Don't Bring a Friend on Your Date
Bringing a friend on your date is an instant way to make your date feel like a third wheel. Unless you are going on a group date, bringing someone else along is disrespectful and lets the other person know you are not truly interested in getting to know him/her. It's a great way to ruin what could have been a dynamic date with interesting conversation.
5) Don't Leave Your Cell Phone On
A ringing cell phone is highly annoying a date. Even more annoying is when the date answers the call! Keep your cell phone with you, but turn it off. Never have a friend call you as a way of getting out of a date ("an emergency came up - I have to go"). Instead, just be honest. If a date isn't going well, do the right thing and end it early without lies. You will be more respected for it.
6) Don't Dominate the Conversation
Dominating a conversation is a big dating turnoff - especially for men. You want to try to make sure that the conversation is balanced. You should be asking as many questions as you are answering. You should be asking follow-up questions to things your date says. Most of all, you should be focused on the conversation and not what you are going to say next.
7) Don't Lie
When a person lies (whether in their online dating profile, on a date, or while in a relationship) they lose instant credibility. Try practicing being 100% honest with everything in your life. You'll see major improvements in your relationships, dating life, and self esteem. Lying destroys credibility and potential relationships. Learn to always be truthful in a sincere way.
Don't be Late
Being late to a date gets your date off on the wrong foot. If you know you are going to be late and can't help it, then call the person in advance. Tell them you are running late, when you'll be there, and that you are looking forward to seeing them.
9) Don't Make Decisions for Your Date
Some men think it's cool to order for their date, when in reality it is inconsiderate. Some women like it, but most don't. Like you, your date can think for himself/herself and when you take that away from them, the date may see you as being compulsive or controlling. And that's a turnoff.
10) Don't Eat Like You're Starving to Death
On a date, you should eat normal and with proper table manners. If your date sees someone who looks like they haven't eaten in weeks, it may make them wonder about your lifestyle (and income).