[Zybomb]

This is highly dependant on my opponent, if I believe I am a better player than him, his aggression, and my read on him.

Some players like to stick to a basic strategy that works for them -- generally preflop they are either small pot oriented or large pot oriented.

This means on the button, some players like to raise often (with anything) and CB a lot.

Other players like to limp in, see cheap flops and then use solid post flop play to win the bigger ones and lose the small ones

This may be a leak in my HU game, but I allow my opponent to set the pace. Im naturally more comfortable with a lot more limping, seeing cheap flops, having pots be small, and using my small edges I (hopefully) have to grind out some chips. So if my opponent does not go raise crazy or ultra aggro, I stay passive preflop for the most part. I raise my good hands ("good" being a far larger range than "good" at a full table) and limp with fair hands (and trash). With trash hands, Im more likely to raise (since they play so poorly post flop). I'll also mix in raises and call with ultra premium hands (QQ-AA). If I play it slow one street though, I play it fast the next.

I believe the fact that I'm more likely to raise with a agrbage hand than limp, takes away the information Im giving away when raising most of my good hands. When I limp, it's observant players will put me on a medium strength hand (if they pick up on my strategy), but I'll mix in limps with AJ AQ and medium pairs enough to keep them guessing.

If my opponent is in aggressive mode however, I have to adapt. If he's raising on the button 2 out of 3 times, Im playing back at him 1 out of those 2 (either by reraising preflop, or calling then bluff raising the flop/calling the flop with intentions on stealing on the turn) unless of course I feel it's a bad spot.
In addition Im raising a lot more on my button, and Im valuing hands more as well.

Since I think (correctly or incorrectly) that I tend to be a better player than my opponent more often than not, that is the reason I prefer a slower paced game with small pots and more flops... it gives him more opportunities to make a mistake and me more opportunities to capitalize on them. It gives him more chances to catch a hand, overvalue it and then pay me off. If my opponent is aggressive however this strategy will not work, as I will just be run over (If he raises every button then bets every flop, if I don't play back Im easily losing this match)

I try and put my opponents on hands, and get a feel for the type of player he is very early in the contest (how will he play draws, how often will he check 3 times with a hand he knows cant win a showdown, what kind of calls is he making and with what strength of hands, is he careful, reckless, does he overvalue hands, can he easily be moved off hands with a big bet, how does he bet his monsters, his bluffs etc)

I rarely fold preflop from the SB unless the BB often raises, in that case Im folding the bottom percentage of my hands 50% of the time (and raising the other 50%)

Drawing hands like small pairs and suited connectors/1 gappers all go down in value.... big cards (KJfor exaple) go up in value.

When all in, remember an unplayable hand with a big card i sbetter than a playable hand with medium cards. For example, K7 is stronger than JsTs, simply because of high card value, although K7 is not normally a playable hand and JTs normally is.

This is by no means a complete strategy or discussion on the topic -- but it's a little to get you started....Im sure some of the better HU players on this forum may be able to add more