That's part of it, too. You want me? You get aallll of me, warts and all. I might not throw them all at you on the first date but by the third, you're going to know all you need to know about me to make a decision as to whether we're moving forward or not.
A big one for me is casual cursing, with the exception of the f-bomb. It's the way I talk, casually. I grew up with it and it continues because a lot of my friends are blue collar, for lack of a better term. So if it is going to bother you that I say dam and hell? Yeah, we're not going to get along long term because that's just ingrained. I control it in 'polite' company but day to day? It's a lot of effort. Or social drinking. In my family, alcohol was always around. As kids, my brother and I started having wine with dinner, if my parents were having it, at a fairly young age. So it's normal to have a beer when you come in from yard work, a glass of wine with dinner if we're all together and the same with a night cap. If you aren't OK with that, we're not going to be a good match. I might not drink at home by myself very much but when I'm with my family? We drink. Nobody gets drunk. Tipsy maybe but not drunk.
So on a first date, if it is an appropriate time of day, I order a beer or a glass of wine with my meal. And usually drop a curse word or two at an appropriate place in the conversation. Weeds out the incompatibles in a hurry. I know you're supposed to be on your best behaviour for a first date but I'd rather not waste time on someone who is going to be offended by my blue collar roots.