Here are some of these topics, avoid them:
Health problems
Your health problems are not turning a woman on. Don't think you'll conquer her by saying, for example, you have a chronic ulcer. You can talk only about soft problems such as leg/hand fractures etc.
Technical slang
An average woman will not stand any slangs or words that only you may understand. In this case, she may think you are fond of your job and that you want to humiliate her.
Sport
Just to make it clear: the majority of women don't like the sport to the extent men like it.
Stories about unlucky trips
If you wanna say a story, choose a perfect one, otherwise she'll feel sad.
People she doesn't know
You may spoil the date if you talk about your friends whom she hasn't met yet.
Cars
Any five-year old child will tell you: boys play with cars and girls with dolls. She won't get excited if you start talking to her about roaring engines.
