Abstract: A computer-implemented method for monitoring user activity during content presentation at a content presentation device having an input interface for receiving input from the user, the method comprising performing the following steps at the content presentation device: obtaining content to be presented to the user; monitoring user's actions input via the input interface while presenting the content to the user; calculating a user satisfaction rating; storing the user satisfaction rating in a memory of the user device; characterized by: when monitoring user's actions, determining volume level changes and navigation commands input by the user; and calculating the user satisfaction rating value (R) as a function of a volume level rating (R_VL) having a value dependent on determined volume level changes and predefined volume level patterns and a navigation commands rating (R_NC) having a value dependent on determined navigation commands and predefined content navigation patterns.