There are generally two versions - pot limit and fixed limit. They play fairly significantly differently. Biggest keys:
1) Play tight preflop. Don't get sucked into the "oh wow all the potential combos!" People will be in there with hands like KhJs5s3d. Don't be one of those people.
2) You want to have the nuts or be drawing to the nuts. This goes double when you are only going one way in a pot. Tons of people donk off a lot of money with something like A3 low draw, no high hopes, then either they miss the low or it comes and they lose to A2. Or they will put in a lot of money with like Jh9hXX on a board like Th6h2x, and so they are only eligible for half the pot if a low comes, have no real high hopes other than a flush, and when the flush comes, they will frequently be against a higher flush. This is all amplified the more people that see the flop, which in low-limit O8 is usually a lot.
3) Be aware of being "quartered" even with nut hands. This is a worse problem in pot-limit, since the bet sizes you have to be are big compared to the flop. For example if you have A2 but nothing for high in a multi-way pot that is going pot-pot-pot with 3 players in, there is a good chance one or both of the other players has A2 and also something for high, so you will get nothing from the high pot and only a chop of the low pot, resulting in you putting in more than you are getting back. In limit, the bet sizes are small enough that you almost always have to go with it (remember that the previous bets you already have put in are sunk costs and part of the pot now, so you can't think "I'm not getting back the total that I put in" only "will I get more back than I have to put in from here on out?"
4) Be aware of getting freerolled or counterfeited. Again, much more painful/expensive in PL. Say the board is 789hh and you have JTAK. So you have "the nuts" right now. But if a low card comes, you now can only get half the pot. If a T comes, you lose to QJ. If a heart comes or the board pairs, you lose to tons of combos. Against heavy action, it is going to actually be correct to fold this on the flop, which is super counter-intuitive for a holdem player. Similarly, say the board is 678. A hand like A2KQ is MUCH weaker than a hand like A245 or even A23K. On the first, you have a solid high hand to go with your low (you won't always win the high obv, but you can be the person getting 3/4 against another A2XX like I mention above. On the second, you have an uncounterfeitable low. If you just have A2xx, your hand goes to shit if an A or 2 peels. But if you have A23, you still have the nut low.
5) On a related note, get familiar with how to figure out low hands when 4 or 5 low cards hit the board. It is super easy with 3, but tricky with 4, where you pair one of them. For example, 24 is better than A2 on a board of A378K, even though A2 makes a low and people think of A2 as the "nut low".