A computer-implemented method of mode determination, the method comprising: receiving, by a computing system comprising one or more computing devices, object detection data based in part on one or more sensor outputs from a plurality of sensors that detect one or more portions of a user of the computing system; receiving, by the computing system, motion data based in part on one or more sensor outputs from the plurality of sensors, the motion data describing a motion of the computing system relative to the user of the computing system; determining, by the computing system, based in part on the object detection data and the motion data, a state of the one or more portions of the user of the computing system comprising one or more spatial relations of the one or more portions of the user of the computing system with respect to the computing system; determining, by the computing system, based in part on the object detection data and the motion data, when the state of the one or more portions of the user relative to the computing system matches one or more falsing profiles associated with a state of the one or more portions of the user relative to the computing system that does not cause activation of one or more components of the computing system, the one or more components comprising one or more microphone components, one or more camera components, or one or more text input components, wherein the one or more components are associated with performing one or more operations comprising detection of one or more inputs; and responsive to the state of the one or more portions of the user of the computing system satisfying a plurality of operational criteria, activating, by the computing system, an input mode of a plurality of input modes associated with activating the one or more components of the computing system, wherein the satisfying the plurality of operational criteria comprises the state of the one or more portions of the user relative to the computing system not matching any of the one or more falsing profiles. receiving, by a computing system comprising one or more computing devices, object detection data based in part on one or more sensor outputs from a plurality of sensors that detect one or more portions of a user of the computing system; receiving, by the computing system, motion data based in part on one or more sensor outputs from the plurality of sensors, the motion data describing a motion of the computing system relative to the user of the computing system; determining, by the computing system, based in part on the object detection data and the motion data, a state of the one or more portions of the user of the computing system comprising one or more spatial relations of the one or more portions of the user of the computing system with respect to the computing system; determining, by the computing system, based in part on the object detection data and the motion data, when the state of the one or more portions of the user relative to the computing system matches one or more falsing profiles associated with a state of the one or more portions of the user relative to the computing system that does not cause activation of one or more components of the computing system, the one or more components comprising one or more microphone components, one or more camera components, or one or more text input components, wherein the one or more components are associated with performing one or more operations comprising detection of one or more inputs; and responsive to the state of the one or more portions of the user of the computing system satisfying a plurality of operational criteria, activating, by the computing system, an input mode of a plurality of input modes associated with activating the one or more components of the computing system, wherein the satisfying the plurality of operational criteria comprises the state of the one or more portions of the user relative to the computing system not matching any of the one or more falsing profiles.