I was going to take Rambler's suggestion and try posting one of these on Parker's page. But then I read some of Cellini's posts (thanks for the heads-up, Poet), and decided against it. Cellini makes some good points (e.g., see 98%'s response to one of his posts), but Cellini seems strange to me. Something doesn't seem right. My antenae are up on that guy. I don't think that his elevator stops at every floor.

#7- Sipping beers, making one drink last the whole session.
JMorgan already touched on this. This is one of those things that, maybe taken with a LOT of other tells, would be noticed. But imo, it certainly won't make a casino snap. It's not a mistake. It's a tell.

#8-Pocketing chips
This is way too broad a category. There are many variables here. Pocketing chips CAN be a mistake if done blatantly. If done quickly and secretly (from the pit), and if it's not obvious how much you won, I think the risks are low, and the rewards high. If you are the only player playing high denomination chips, pocketing is a mistake, since the pit can tell how many of the large chips are missing, and since you are the only one playing them, you hid them. Clearly a mistake. But if you are playing within the range of other players, and IF you have a big win, then NOT carefully pocketing chips is an error, a major error. Keep the amount of pocketed chips realistic. If you are being watched by surveillance, pocketing is a problem, but then, if you are being closely watched by surveillance, you've got more serious problems.
My verdict- Depends on a lot of variables. Not a mistake if you do it secretly. A mistake if you are obviously pocketing.

#9- Player volunteers to be rated, but doesn't offer driver's license.
I disagree here. There are MANY reasons for a ploppie not to want to give up a driver's license if it's not necessary. This is silly, imo. This is not a mistake. This is not even a tell.
A much more intriguing point would be, what if a player does not volunteer to be rated at all? (I'd say mistake in most cases, depends on the specific conditions).