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Timing tells are arguably the most important behavioral tell in poker. And in the category of timing tells, immediate calls are arguably the most important timing tell.
A quicker-than-average call will, in general, mean a decent but not very strong hand. The main practical use of it is in knowing that a player is unlikely to be at the top of their range, which can be useful for encouraging bluffs.
The following is an edited excerpt from my first book Reading Poker Tells:
Speed of Calling
In big-bet games, a player who calls a bet quickly is often giving away a lot of information. Calling a bet quickly means that the player has ruled out a raise as the best strategy and done so quickly. (In most games, a “quick” call will be around three seconds or less, but of course this is relative and will vary based on the normal speed of a specific game and the speed of a specific player.)
In my experience, an immediate call is usually a drawing hand with obvious value, like a high flush draw or a straight draw with two overs, or a hand like top pair with a vulnerable kicker or second pair. Something where the value is obviously apparent. Or else it’s a hand like top pair, good kicker, where the player knows they aren’t folding that to you but also knows he won’t be raising.
The immediate call will sometimes be a very strong hand that is clearly invulnerable (e.g., a set on a very dry board, or a flopped full house) but this is fairly rare. Most people with a very strong hand are going to at least consider a raise for a couple seconds, even if they will almost always be slowplaying the hand. Another factor is: these players usually won’t want to draw attention to themselves by calling abnormally quickly; they’ll often want to think for a couple seconds.
A quick call can also be interpreted as a defensive tell, because the player calling is basically saying, “I’m not going anywhere; I’ve got a good hand that I don’t even need to think about calling with.” So we would expect a player expressing strength in that way to be vulnerable.
All of these factors mean that when I’m playing with someone who calls a significant bet quickly, and I’m weak myself, I start thinking about my chances of a pulling off a bluff.
Below is an excerpt from my book Exploiting Poker Tells:
Hand #44: Immediate call from aggressive player
$2-5 NLHE cash game
A player puts out a $10 straddle UTG.
I have K♣ Q♠ in middle position. I don’t notice the straddle and because of this I raise to only $20. The UTG straddler calls.
This player’s range is obviously super-wide considering my min-raise. For a little history: this player is known for often being too-aggressive and is capable of doing some very weird things.
The flop is K♥ 5♣ 4♣. He checks. I bet $30 into $47 and he calls immediately.
Let’s think about this immediate call. Immediate calls, in general, will indicate weak hands and weak draws. With strong hands on most boards, players will at least consider a raise for a second or two, even if they decide to slowplay. And if they flop a strong draw (for example, A♣ Q♣ on this flop) they will also usually consider a raise. This means most immediate calls on the flop and turn will be hands that a player considers obviously worth a call and also obviously not worth a raise; hands like top pair with a weak kicker, weaker one-pair hands, straight draws, and weak flush draws.
But in this situation this player’s immediate call is even more meaningful than usual. This is because this player is aggressive. This player looks for any opportunity to be aggressive. Even if he had a low flush draw, it’s likely he’d at least consider a raise.
The turn is the T♠. I bet $70 into $107 and he again calls pretty quickly. This makes straight draws very unlikely; while he might snap call all sorts of straight draws on the flop, he’d be unlikely to do that for the larger turn bet.
The river is the K♣, giving me trips but also putting three to the flush out there. In a vacuum, without his behavior, I’d be checking here. But as it is, I think it’s probable he has a one-pair hand.
I bet $100 into $247, purposefully sizing the bet on the lower side to try to get some weaker calls or induce bluffs. (A bigger bet or a check could easily be better choices than this.)
Immediately he puts out a raise to $300, with a kind of violent motion. I know this player is fully capable of bluffing here, especially taking into account my small river bet. I call and he says, “You’re good” and mucks.
Now obviously I will be wrong sometimes here. If he did end up having a flush here, it would probably be a low one, which would help explain the immediate flop call.
Remember: part of my confidence in this read is based on this player being aggressive. For a more passive player, who won’t automatically be thinking of raising with a flush draw, these ideas won’t apply.
Zachary Elwood is the author of the Reading Poker Tells trilogy of books, which has been translated into eight languages and sold more than 48,000 copies. See more frequently asked poker tells questions.