| 摘要 |
A computing device including a multi-touch surface, and a method of operation thereof are described. The method comprises: detecting a customer's hand placed palm downwards on the multi-touch surface and detecting the customer's hand pivoting upwards from the detected palm downwards position so that an edge of the hand is placed on the multi-touch surface. The method also comprises displaying a private interaction window located adjacent to, and on the palm side of, the customer's hand; and communicating private data on the private interaction window. The private interaction window is dimensioned to be shielded by the customer's hand.
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