4) Resist the temptation to spill your guts out, even when she asks. Women are like oil drillers. Their job is to drill your soul for as much information, insight & history/background as possible on you. As soon as the well she is drilling into has run dry, it is very likely that she will start finding other wells that are untapped (i.e., other men), a tempting target. At the beginnig of a relationship, this information drilling is RUTHLESS, like you're on a giant interview. Do not lie, but I suggest telling a straight-up answer about 1/3 of the time. Another 1/3 just give a short-but honest answer (that obviously requires follow-up), and the last 1/3rd of the time, just be jokingly evasive. This will DRIVER HER NUTS, and keep her active imagination going and therefore keep her entertained. Eventually, she WILL find most everything about you (every well has a finite amount of oil, after all). But in a LTR, there are other ways to maintain mystery--teasing, short answers to her questions, discussing your thoughts on current events or gossip about friends, etc. I'll say my famous quote right here: "When the keg is empty, the party is OVER. More accurately, when the keg is empty, the party is MOST LIKELY over. Do your best to ration out your, "personal mystery beer," to make the party last as long as possible. Hopefully after that time, she'll be attached enough to you so that you have a bond strong enough to withstand the fact that you both know everything about each other now, and other people are actually more interesting & mysterious. The longer you can maintain some degree of mystery, the longer you can hold off, "The Coolidge Effect".
5) Be spontaneous. This directly feeds into point #4, because if she doesn't know what you're going to do next, it feeds into the whole, "mystery," concept. Sometimes stay in for a lazy movie night. Sometimes stay in & cook a romantic dinner, sometims go out to a diver bar, sometimes go on a fun road trip, etc. The point is--MIX THINGS UP. This is VERY hard for most people to do---they fall into a pattern. Going to a favorite bar or restaurant all of the time, etc. Women like surprizes, even if they are little & cheesy. Like taking her out to dinner but not telling her where you're going. Being spontaneous also includes SEX. Most couples establish a routine--the same positions in roughly the same order in roughly the same place. Enough w/ the making out/bj/eating her out/missionary/doggie/finish on the bed. Try bending her over the bathroom sink. Try the coffee table. Try getting busy in a restaurant bathroom. The last thing about the, "Be Spontaneous, "rule is---"be spontaneous in being spontaneous." If you do a new thing every Friday, you've got to realize that that is ALSO a pattern. Don't let her figure it out. Again, the more successful you are at doing this, the more you can keep, "The Coolidge Effect," at bay.
6) Keep up your vigilence for her shit-tests. Most guys are hyper-sensitive to shit tests early on, but when they, "seal the deal," they figure their place on her ladder is locked into place. This is wrong. Granted, your spot on the ladder might be more difficult to move, so if you slip up a few times on a shit-test, it's no big deal. But after awhile, it WILL have an effect. Kind of like your GPA. Freshman year (of high school or college), your overall GPA can radically go up or down if you do really well or really poorly in one particular semester. But as the years go on, it becomes more difficult to improve or kill your GPA. That's because it's just one or two data points in a large set of data. In relationships, women remember EVERYTHING. But you cannot rest on your previous good deeds forever. If you slack, eventually that will start to outweigh the good stuff you did early on. So, keep wary. Some guys just give up on the shittests because they're sick of arguing and it's easier to apologize (even if they don't mean it) and move on. This is the beginning of the death-march of the relationship. Don't get me wrong, it's fine to just roll over once-in awhile. You've got to pick your battles wisely. But many guys fall into the trap of NEVER drawing the battle lines and pushing back on a GF if they feel strongly about something. If they are obviously acting bitchy, let 'em have it, etc. If you keep doing little stuff for HER (like shoe shopping w/ her, etc.), DEMAND that she do little stuff for you (like watching football w/ you). Don't be afraid of a little drama in the relationship---that's is what's, "EXCITING," to her--something she can worry about & talk to her friends about. Then you get to make up. It's like a soap-opera, and women are addicted to that shit. Just make sure not to push it too far w/ the arguing, because then you go from, "exciting-but fulfilling relation ship," to just a, "bad relationshp where we're always arguing."