9. One or more computer-readable storage media storing instructions that, when executed by a processor, implement a method comprising: detecting, by a motion detection system coupled to a user device, a body motion of a user to determine a tagging gesture indicating a region within a media content displayed at the user device, the region including an item; based on determining the tagging gesture, providing for display at the user device a representation of the media content indicated by the body motion; based on the tagging gesture, identifying the item and determining the item is a tagged item; identifying tag-item data associated with the tagged item; in response to the tagging gesture, automatically initiating a search for content related to the tagged item, wherein the search is initiated based on a search query, wherein the search query is based on the identified tag-item data and user data, the user data comprising a history of previously tagged items that were tagged by the user associated with the tagging gesture; receiving the content related to the tagged item in response to the search query, wherein the received content related to the tagged item is based on the identified tag-item data and the user data; and causing a presentation of the content related to the tagged item, wherein the content related to the tagged item is presented in association with the tagged item.
9. One or more computer-readable storage media storing instructions that, when executed by a processor, implement a method comprising: detecting, by a motion detection system coupled to a user device, a body motion of a user to determine a tagging gesture indicating a region within a media content displayed at the user device, the region including an item; based on determining the tagging gesture, providing for display at the user device a representation of the media content indicated by the body motion; based on the tagging gesture, identifying the item and determining the item is a tagged item; identifying tag-item data associated with the tagged item; in response to the tagging gesture, automatically initiating a search for content related to the tagged item, wherein the search is initiated based on a search query, wherein the search query is based on the identified tag-item data and user data, the user data comprising a history of previously tagged items that were tagged by the user associated with the tagging gesture; receiving the content related to the tagged item in response to the search query, wherein the received content related to the tagged item is based on the identified tag-item data and the user data; and causing a presentation of the content related to the tagged item, wherein the content related to the tagged item is presented in association with the tagged item. 10. The media of claim 9 , wherein the search query is further based on context-item data, the context-item data comprising data associated with additional items included within the displayed media content.