11. One or more non-transitory computer-readable media as recited in claim 6 , wherein the determining comprises: calculating a similarity between a voice print associated with the first audible command and a voice print associated with the second audible command; comparing the similarity to a threshold; and determining that the user that uttered the first audible command is the same as the user that uttered the second audible command at least partly in response to determining that the similarity is greater than the threshold.
6. One or more non-transitory computer-readable media storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform acts comprising: determining whether a user that uttered a first audible command is the same as a user that uttered a second audible command; causing performance of an action associated with the second audible command at least partly in response to determining that the user that uttered the first audible command is the same as the user that uttered the second audible command; and refraining from causing performance of the action associated with the second audible command at least partly in response to determining that the user that uttered the first audible command is not the same as the user that uttered the second audible command.