First dates can be many things -- awkward, painfully awkward, so unbearably awkward that you'll never date again as long as you live... One thing they all have in common, however, is that they're all about first impressions. Your date will be judging every little thing, whether they want to or not. And you'll be judging back, whether you think you're a judgmental person or not.
If you're out to dinner on your first date, there are a few simple things you can do to minimize the negative impressions. One of them is not breaking the cardinal rules of first date foods. Don't order anything that will make it hard to talk to the other person -- so, nothing too cumbersome to eat and nothing bad breath-inducing. Don't order anything that makes it hard to look the other person in the eye -- so, nothing that will inevitably get stuck in your teeth. And don't order anything that you'll regret later (we'll leave it at that).
So much can go wrong on a first date, but in the end, being yourself and going with your gut is the most important thing. Just don't order the wrong thing.