A first date is also a good time to get to know the other person's lifestyle choices — especially ones that could cause problems down the road, Duran says.
If one person is vegan, for instance, and the other loves steak, that might be a deal breaker for one party. The same is true for alcohol. If you're a recovering alcoholic, for instance, you may not want to spend too much time with a big party-goer. "Those kinds of things should be open," she said. "That's who we are."
While Duran stresses you should keep an open mind when getting to know someone, if you know a certain lifestyle would not match yours, go ahead and ask right away.