Various aspects of the subject technology relate to disambiguating user intent on a touch-sensitive input device. A system is configured to detect an initial number of touch events on a touchscreen device where each touch event corresponds to a finger of a user. The system determines whether the initial touch events on the touchscreen device are resting fingers based on at least one rest heuristic and attributes the initial number of touch events to resting fingers on the touchscreen device based on the determination. The rest heuristic may include, for example, whether the number of initial touch events on the touchscreen device exceeds a threshold number of touch events or whether the initial touch events are detected for a threshold duration.