For better or worse... your true intentions are known
Sometimes a first date is a fluke. Let's say you have a close female friend whose dog suddenly dies and you decide to ask her out for pizza out of sympathy, but she interprets the friendly move as an act of courtship. Now you're covered in cheese and tears and you don't know what to do next.
That's why you don't ask her out again -- but a second date will (and does) reaffirm everything either party thinks the other thought on the previous date. So, at the same time, getting that text for "let's do it again next Friday" will alleviate the stress of not knowing whether or not they were into it.
The real you shines through
Is "shines" the right word here? I guess it all depends on what you would do if you happened upon a fedora in the middle of a street. The first date is when you're Mr. Cool Guy -- you wear the T-shirt that makes you look ripped, those jeans that do wonders for your calves, and that puka shell necklace you bought after you found out you could stream The O.C. on Hulu.
Guess what, though? You can't wear any of that stuff again; the second date is all about what you're really like underneath all the fabric and seashell material. Do you really have the necessary muscles to pull off any other kind of T-shirt? Do you look as cool as Ryan Atwood in a puka shell necklace? (No.)
Sex is even more up in the air
Let's put the perspective chance of sex at around 50% on a first date. You're either completely not into it or so into it that you abandon your no-sex-on-the-first-date rule and jump into the sack with the person you just met. In either case, sex is far from guaranteed on the second date.
If you're the type of person who doesn't sleep with someone on the first date, you're probably not going to concede to doin' it on the second. Similarly, if you already knocked boots once, this is suddenly the date where you "get to know each other." Guys, the second date is serious.
You have to clean your apartment
Yeah, guys, sorry. You can always blame your dirty-ass apartment on your roommates or laundry day when it's first viewed by virgin eyes… but when someone sees the same discarded box in the same spot two weeks in a row, that's when the judgment begins.
So, clean your apartment and try to pass the illusion that you don't live like a complete vagrant. In fact, regularly cleaning your apartment will only lead to a nice lifestyle, despite what most college-aged people and young adults assume.
To sum it up: stop sweating that first date -- they come and go, and you'll acquit yourself better if you're super relaxed anyway. The "I better not screw this up," high-stakes action doesn't kick in until the second date, anyway.
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