A method for outputting a response to a user input using a home device , the method comprising: outputting (S310) content including at least one of a video output and an audio output; receiving (S320) a user input; detecting (S330) an output condition of a response to the user input of the home device, wherein the output condition of the response to the user input includes an audio condition of the content that denotes a preset degree of importance in the audio output of the content, a video condition of the content that denotes a preset degree of importance in the video output of the content, and a user detection condition that denotes whether or not a user is detected around the home device; outputting (S340) the response to the user, wherein the response to the user input includes at least one of an audio response and a video response, and output of at least one of the audio response and the video response is adjusted based on the detected output condition of the response to the user input; and wherein, if the user detection condition denotes that the user is detected around the home device and the response to the user input includes the video response: - determining whether or not a plurality of users is detected; - detecting sight lines of the user with an image capturing sensor if only one user is detected; and - outputting (S340) the video response using an external device to which the detected sight lines of the user are directed based on the detected sight lines of the user. outputting (S310) content including at least one of a video output and an audio output; receiving (S320) a user input; detecting (S330) an output condition of a response to the user input of the home device, wherein the output condition of the response to the user input includes an audio condition of the content that denotes a preset degree of importance in the audio output of the content, a video condition of the content that denotes a preset degree of importance in the video output of the content, and a user detection condition that denotes whether or not a user is detected around the home device; outputting (S340) the response to the user, wherein the response to the user input includes at least one of an audio response and a video response, and output of at least one of the audio response and the video response is adjusted based on the detected output condition of the response to the user input; and wherein, if the user detection condition denotes that the user is detected around the home device and the response to the user input includes the video response: - determining whether or not a plurality of users is detected; - detecting sight lines of the user with an image capturing sensor if only one user is detected; and - outputting (S340) the video response using an external device to which the detected sight lines of the user are directed based on the detected sight lines of the user. - determining whether or not a plurality of users is detected; - detecting sight lines of the user with an image capturing sensor if only one user is detected; and - outputting (S340) the video response using an external device to which the detected sight lines of the user are directed based on the detected sight lines of the user. <EOS>