First dates are scary, nerve-wracking, and potentially awesome. Or terrible. You never know what you're getting into, but hopefully you'll avoid talking about some of the things that could make it turn for the worst...
#1. Your Future Wedding
Stop yourself right now. Even if you're doing something cute like saving the menu or stealing a pint class from the location of your first date, do NOT mention your future nuptials, the perfect way to scare off an otherwise great date.
#2. Your Ex
This sounds like a no-brainer but the topic comes up, a lot. Chances are, you were close to your ex and have a lot of memories with him or her. Even if you're on good terms, don't mention them. Just don't.
#4. Your Intimate Life
Your date doesn't want to know the last time you've slept with someone and they also don't want to hear how many other people you are (or aren't) seeing. Save that for your friends!
#5 Your Strange Theories
These can be cute and quirky, but maybe more second date material. You don't want to make your date feel awkward if they don't agree, nor do you want to scare them off with your thoughts on the existence or lack thereof of martians.
#7 Your Cheese Allergy
If you're allergic, just avoid it. No one wants to know or think about what happens when you eat cheese, or whatever it is that makes you ill.