mycroft, on 2012-May-31, 15:20, said:
partner RHO looked at my CC after 1NT-4♥. Why? Oh he wants to know if we play Texas or not. And oops, we do. "Alert."
Tell me that exact line of thinking isn't going to happen - in fact doesn't happen every day. In this auction, it's pretty much SOP (especially for me when I play South African Texas).
Certain checks of the CC don't pass any useful UI - "he's checking our carding", or "she looked at the end of a 6-round auction. I wonder what he might be caring about" (of course, in that case they usually tell me what they think I am looking for. Frequently, they're wrong.) But this auction, a glance at the CC is functionally equivalent to "Do you play Texas?"
[Edit: thanks ArtK78]
Isn't that the gist of the question in the OP: Where do the laws say that the opponent looking at your CC, or even asking you "Do you play Texas?", is UI? Your answer to them is UI to your partner, but where does it say that YOU can't be woken up by the opponent's action?
It SEEMS like there should be something wrong with this -- finding out what your system is is supposed to help the opponents, it's not supposed to make any difference to you. It also doesn't seem fair that it should matter which opponent they ask -- if they ask the player who remembered correctly, the answer is obviously UI to his partner who forgot, so the forgetter can't be woken up; but if they ask the player who forgot, the law seems to allow him to wake up as a result of the question, since he didn't get any UI from his partner.