Firstly,hope that the mittens quip came across as was meant, a bit of fun. Sorry if it didn't.
Second a question...
Can the orientation of the revealed cards be changed, to convey information to the guessing logician?
[spoiler='
?Can the hand used to reveal the suite be changed
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Agree that a particular orientation means red suit and the other means black suit.
After a guess is made the hand used to turn the card indicates the suit of nex cardt, say
left hand is club/heart and right is diamond/spade.
Opening gambit could be signalled by an open palm gesture left/right as above.
Think this would work with mittens on too.