What are the taboos for a first date?

Pay attention to your image, for example, don't come sweaty from yoga or with "sticky" hair. Don't wear flip-flops and shorts. Don't talk incessantly about topics that interest you, but let the other person participate in the conversation. Don't talk about politics, religion, or sex. Don't talk about ex-boyfriends/girlfriends. Don't take out your cell phone to count the bill in a restaurant. Don't ask each other questions as if you were checking on your life. Don't ask the woman if she can cook vegetables and other trivial things.