A multi-modal sensing surface comprising: two overlaid arrays, the two arrays comprising a capacitive sensing electrode array and an array of RF antennas ; a first sensing module coupled to the capacitive sensing electrode array and arranged to: detect both an increase and a decrease in capacitance between electrodes in the array , the increase in mutual capacitance being caused by a wireless tag proximate to the multi-modal sensing surface ; and a second sensing module coupled to the array of RF antennas and arranged to, based at least in part on detecting the increase in mutual capacitance: identify one of the RF antennas based on the location of the detected increase in the mutual capacitance; selectively tune the identified RF antenna in the array of RF antennas, to a frequency corresponding to a frequency of the wireless tag ; and deactivate one or more other RF antennas in the array of RF antennas, whereby the wireless tag is tracked using the array of RF antennas based on the strength of the signal received from the wireless tag. two overlaid arrays, the two arrays comprising a capacitive sensing electrode array and an array of RF antennas ; a first sensing module coupled to the capacitive sensing electrode array and arranged to: detect both an increase and a decrease in capacitance between electrodes in the array , the increase in mutual capacitance being caused by a wireless tag proximate to the multi-modal sensing surface ; and a second sensing module coupled to the array of RF antennas and arranged to, based at least in part on detecting the increase in mutual capacitance: identify one of the RF antennas based on the location of the detected increase in the mutual capacitance; selectively tune the identified RF antenna in the array of RF antennas, to a frequency corresponding to a frequency of the wireless tag ; and deactivate one or more other RF antennas in the array of RF antennas, whereby the wireless tag is tracked using the array of RF antennas based on the strength of the signal received from the wireless tag. detect both an increase and a decrease in capacitance between electrodes in the array , the increase in mutual capacitance being caused by a wireless tag proximate to the multi-modal sensing surface ; and a second sensing module coupled to the array of RF antennas and arranged to, based at least in part on detecting the increase in mutual capacitance: identify one of the RF antennas based on the location of the detected increase in the mutual capacitance; selectively tune the identified RF antenna in the array of RF antennas, to a frequency corresponding to a frequency of the wireless tag ; and deactivate one or more other RF antennas in the array of RF antennas, whereby the wireless tag is tracked using the array of RF antennas based on the strength of the signal received from the wireless tag. identify one of the RF antennas based on the location of the detected increase in the mutual capacitance; selectively tune the identified RF antenna in the array of RF antennas, to a frequency corresponding to a frequency of the wireless tag ; and deactivate one or more other RF antennas in the array of RF antennas, whereby the wireless tag is tracked using the array of RF antennas based on the strength of the signal received from the wireless tag. <EOS>