Quick answer
Improvement comes from reading deals, not memorising the card. Practise one hand a day, name your direction before you check, keep a record of when you were wrong, and study the hands you lost.
Most players improve for a few months and then plateau, and the reason is almost always the same: they are practising the wrong thing. Playing more games helps less than people expect, because a game night gives you perhaps a dozen deals and most of the evening is spent waiting for a turn. The skill that separates a good player from a competent one is reading a deal fast and honestly, and that is trainable on your own, in a few minutes a day, with nothing but a set of tiles and somewhere to write things down.
Practise the read, not the card
Beginners try to memorise the card. It does not work, the card changes every April, and it is not what strong players are doing anyway. What they are doing is looking at thirteen tiles and, within a few seconds, naming the two categories the rack could serve and which is ahead.
That is the drill. Deal yourself a hand, look at it, and say out loud which direction it goes for and what the backup is, before you check anything. Then check. The gap between what you said and what the hand actually supported is the only feedback that matters, and it is the feedback a game night almost never gives you, because by the time a hand is over you have forgotten what you thought at the start.
One hand a day beats a long session once a week
Reading a deal is a recognition skill, and recognition skills respond to frequency rather than duration. Five minutes daily builds the pattern library faster than two hours on a Sunday, because you are asking the same question from a cold start many more times.
Keep it small enough that you actually do it. Deal thirteen tiles, read them, write down the direction and one reason, check, move on. That is the whole exercise, and thirty of them will change how a rack looks to you.
Write down your call before you check it
This is the step everyone skips and it is the one that does the work. If you look at the answer first, you will agree with it, every time, and learn nothing. Committing to a direction in writing first turns each deal into a test with a score rather than a demonstration you nodded along to.
A notebook is enough: date, the direction you called, what you actually held, and whether it matched. After a few weeks the useful pattern is not your success rate, it is the shape of your misses. Most players find they consistently overrate one kind of hand, usually the one they most enjoy playing, and seeing that written down three times in a row fixes it faster than any amount of advice.
Drill the Charleston on its own
The Charleston decides more hands than play does, and it is the easiest part to practise in isolation because it needs no opponents. Deal a hand, pick your three to pass, and then argue the other side: what would have to be true for a different three to be right.
The specific habit worth building is passing what serves neither of your top two directions rather than what serves neither of your top three. Players who keep four directions alive through the Charleston are really keeping none, and they pass away tiles they want back two minutes later.
Study the hands you lost
A hand you won teaches you very little, because the draws cooperated and almost any reasonable line would have worked. The hands worth reviewing are the ones that died: the direction that ran out of tiles, the pair you could not fill, the exposure you made a turn too early.
Ask one question about each. Was the read wrong at the deal, or did the read stay right and the tiles simply refuse. Those are different problems with different fixes, and lumping them together as bad luck is how players stay at the same level for years. Only the first one is a mistake, and only the first one is worth changing anything over.
What is not worth your time
Memorising card lines, for the reason above. And chasing other people's hand rankings: which categories are strong varies by year with the card, so a rule learned in one year can be actively wrong in the next.
Two-handed play deserves a more careful answer than either. It is genuinely good for the reading drill, which is why our two-player guide recommends it for exactly that, but it cannot teach you calling judgement or defence, because with one opponent there is almost nothing to read. Use it to practise the deal, not as a stand-in for a table.
Also worth dropping: the idea that you need a group to improve. The reading skill, the Charleston decision, and the discipline of calling before checking are all solo work. The table is where you use them, not where you build them.
Put it into practice
A fresh coached hand every morning, the coach on call for your own tiles, all ten lessons and the 14-day course. $14.99 a month, cancel anytime.
The hard part of practising alone is the checking: you need something that reads the deal back to you honestly. Mei, our AI coach, does exactly that, and Club members get a freshly dealt hand every morning plus a journal that records the direction you called before you asked and shows you which ones you read well.