Poker Strategies
After receiving pocket cards, you are immediately faced with a choice: play your cards and either raise or call the blinds, or fold.
Practice Matters
Add in some hands to our initial range
Add in some hands to our initial range to create a strong overall defending range: 3-betting hands that won't play very well if you flat, but that can out flop some of your opponent’s 3-bet calling range. Mix in flatting some of your fairly strong to very strong hands some of the time (exact percentages vary depending upon opponent; baseline percentage would be 20/80 flat to 3-bet). With this range your opponent can't be extremely confident in your strength when you're flatting or 3-betting. Most of the uncertainty is going to come with them not knowing which hands you're polarizing exactly. Some people 3-bet a lot of suited connectors, and offsuited connectors. Some don't at all, and some people do a percentage of the time.
For the most part I don't advocate 3-betting
For the most part I don't advocate 3-betting suited connectors from the blinds for several reasons. One, there are just better hands to 3-bet, and two, when I am called I'd prefer to have a hand that plays well against my opponent’s 3-bet flatting range. For example, my opponent who opens wide on the button raises to 2.5 BBs, and I have K4s in the big blind. My opponent plays pretty aggressive on later streets, so flatting isn't a good option. Folding isn't bad, but if I 3-bet, I can get my opponent to fold X% of the time, and Y% of the time they will flat with hands like 55+, A9o+, JTs+, A5s+, etc., hands that I'm only at a slight disadvantage at pre-flop (around Polarized 3-bet range of 28.2% of hands 45/55), and I have initiative. If I flop a king, I have really good showdown value versus their range, and I have semi-bluff potential when I flop or turn flush draws. AK will be 4-bet a majority of the time, so that only leaves KT–KQ, and the combos of those hands are reduced because I have a "blocker" card holding one king.