3. A device, comprising: at least one motion sensor; at least one memory; and at least one processor coupled to the at least one memory, the at least one processor being configured for: determining an identity of a user of the device; receiving a first rotation signal representing a first rotation of the device in a first direction about a first axis of the device; comparing the first rotation to a first threshold, wherein the first threshold is based on the identity; determining completion of a first stage of a tilt gesture based at least in part on the comparing of the first rotation to the first threshold; receiving a second rotation signal representing a second rotation of the device in a second direction about the first axis, the second direction being opposite the first direction; comparing the second rotation to a second threshold, wherein the second threshold is based on the identity; and determining completion of the tilt gesture based at least in part on the comparing of the second rotation to the second threshold.
3. A device, comprising: at least one motion sensor; at least one memory; and at least one processor coupled to the at least one memory, the at least one processor being configured for: determining an identity of a user of the device; receiving a first rotation signal representing a first rotation of the device in a first direction about a first axis of the device; comparing the first rotation to a first threshold, wherein the first threshold is based on the identity; determining completion of a first stage of a tilt gesture based at least in part on the comparing of the first rotation to the first threshold; receiving a second rotation signal representing a second rotation of the device in a second direction about the first axis, the second direction being opposite the first direction; comparing the second rotation to a second threshold, wherein the second threshold is based on the identity; and determining completion of the tilt gesture based at least in part on the comparing of the second rotation to the second threshold. 4. The device of claim 3 , wherein: the determining completion of the first stage is further based at least in part on a first confidence score; and the determining completion of the tilt gesture is further based at least in part on a second confidence score.