There are a lot of dissenting opinions on #5 and when to look at your cards. One that I would pair with that is
#237 Know and regulate your pace. A lot of information is given away in how and how fast you make your bets. A lot of
bluff are pushed into the pot rather quickly. Obviously if you identify a daft player, then you can adjust this general rule to not over-generalize. However, you should always be aware of your own pacing to avoid giving away information inadvertently.
Stix