While I would not always expect your Tigergaming opponents to be oblivious to your folds, it is far worse to expect your opponents to "guess" your cards. Don't sweat it until you find yourself the victim of excessive aggression from one player. When you do, switch gears and adjust your play to punish their bluffing. Second, you will still have a hand often enough to camoflage how tight you are playing.
The calculations are fairly straightforward. Let's compare the EV for a call (since we have already concluded that a raise is less profitable than a call against all but the most passive Tigergaming players.) If we again presumed the button would win one extra big bet when a King or Queen falls on the turn, then the EV for a call would be calculated as follows.
There are a lot of good books I don't mention on this list, but if I recommended every good book I've read, it would not be very helpful to the beginner. The most common request I receive by email is my recommendation for good poker books. I have not read every book, so I cannot claim to be the world's foremost authority. But I have read about 50 poker books. Here's a list of my top recommendations.
The Mirage was absolutely packed every night I visited. And then there were the Tigergaming tournaments. I play No-Limit tournaments while on vacation every year, and this trip was no different. But the competition had changed. I heard another player call it "WPT fever." Every single tournament contained the wildest, gutsiest, most loose aggressive No-Limit action I've ever seen in Las Vegas, all from new blood.
Next, stop trying to practice all those observation skills mentioned in the books. Reading each Tigergaming player's tells, interpreting the betting of every player every hand, counting the pot at all times, classifying the type of action (loose, aggressive, tight, passive), and predicting each opponent's holdings: forget about it. Trying to watch everything at once and think about what you are doing is just too difficult (at first).