I find that most of the time the tells that I catch are very small, slight, and are much more general than "points feet at pot" or "pupils dilate".
There have been a few times I've saved some money with tells, "poker sigh" was one of them. "When a player sighs, they usually have a monster." I have Q9 from BB, UTG limps, some folds, some limps. I check. Flop is QJ9r. I bet. UTG sighs, then raises. I ask him if he flopped the low straight, and he did surprised eyes.
Also "Surprised Eyes" is one I've got before. I have AKo from the buttom. MP+1 raises, folded around, I 3-bet, he calls. Flop comes, but I'm not looking at it, I'm looking at villain. As I hear the dealer's hand slide across the felt, his eyes open just a little bit wider for just a moment, then go back. He checks, turned out I hit the flop with top pair/top kicker pretty dry board (AT7r), but my gut says I'm beat, and I suspect villain for a set just from his eyes talking to me. He checks, hoping I'll c-bet, I check behind. Turn is blank, he checks, I check behind, river is a king. He fires out, I fold two pair face up and he was unhappy. So either he meryl streep'd me out of a 18 BB pot (and continued selling it after the pot was awarded) or his eyes saved me a stack.
In general my reads of villain are a combination of things, and not just one thing. For instance, villain sets a tendancy, then for some reason out of the blue, he's breaking his tendancy.
The covering of the mouth one usually does denote weakness in weaker players, but that's not a tell I'd be making decisions on against regs. Just tourists.
I made an almost sacreligious hero call a few months ago. Pot went down something like this... I'm UTG+1 with 44, raise to 2.3 BBs, several calls, Villain is one of the blinds, raises to 7 BBs. I call, several folds. Flop misses me, has a K on it, some mid cards, and presents a club flush draw.
Villain bets out. 12 BBs. I tack him for a standard continuation bet, and decide I will raise to find out if he hit (raise/fold situation). I make it 33.3 BBs, he snapcalls. I've read since that snap-calling is a tell that the player is drawing. I don't know if that's correct or not, but what I took away from it when we played the hand was that he didn't even consider raising, which told me he didn't have a K and wasn't concerned about me making the flush. The turn is a 3 and gives me an inside straight draw (K753 iirc, still only two clubs). Villain checks, I check behind, not wanting to get into a sticky situation to a check/raise or have him float and then connect on the river, a pair of fours doesn't have much show down value against his range. When I check behind villain gets surprised and... almost frustrated. Like he's either surprised that I'm not that strong, or he's sad he didn't get to check/raise. He even flailed his arm a little bit. I really got no information from this tell.
On the river, which was a brick, he stacks up about half the pot into one tall tower and slides it in. I felt that in his subconscious he wanted me to fold. I wish I would have been paying more attention at the time to what he was looking at, if he was giving me the 'bluffing stare' or not. But I felt that subconsciously he wanted me to fold. So do I raise? No. I only get called by hands that beat me. If I call, I'm really only beat by the K, or a PP, which I have reason to believe he has neither. And I offer him a side-bet that I could name his hole cards. He accepts, I guess AcQc, call him, and rake in a nice pot.
Player on my right later asked me if I called him because his hands were shaking. I didn't notice his hands were shaking. Caro would tell you to fold there, you're up against two pair or a set. Shaking hands can be anything that increases heart rate, blood pressure, adrenaline output, etc, and while my hands sometimes shake when I have a monster, they sometimes shake when I'm afraid, too. I find that the eyes are a window of knowledge. Which is why I strive to cover mine at the poker table.
And it would be bad business to go posting my own tells on here, but I've got a few that involve my eyes.
Now that the long story's over, has anybody ever caught somebody looking from the pot to an immediate glimpse at their stack when they're made big? I've heard about it, read about it, but have only seen it a couple times, and I didn't see the showdown for verification... I guess it should be enough that they won the pot each time.
As far as having a list of tells, they're individual and situation specific. However I find that my gut is right more often than my head... Maybe I've been feeding it well, but I hardly have a large collection of hands this year... Probably <2k live since the new decade rolled around, and I read Caro's book early this year.