At the end of the day, at the end of a date, you have to have a sense of comfort with the person you’re with. If you’re not comfortable saying what you’re feeling, or giving your opinion, or disagreeing with your date… then perhaps you should think twice about accepting the next date.
I’m not saying you should be oppositional on a first date, but if your date is ordering shrimp to share, and you don’t eat shellfish, then you should feel comfortable to say so. Or, if your food order was served incorrectly, then you should feel comfortable to say so.
Things may not be comfortable enough on a first, second, or even third date to start debating current events, politics, or sports… but you should feel comfortable enough to not have to sit stiffly and hold your tongue. The best dates are when you are comfortable enough to laugh so hard that your embarrassing snort comes out, or share your most embarrassing story, or simply admit that you can’t wait to see your date again… soon!