The disclosed technology addresses the need in the art for determining whether a selection of an invitational content item was accidental or intentional based on selection signals that describe the selection. For example, a selection signal can be a selection point, response time, multiple selection count, context of the selection, user preference data, etc. A response to the selection can be based on whether the selection was determined to be accidental or intentional. If the selection was determined to be intentional, the response can be the regular response associated with selection of the invitational content item, i.e. registering the selection for billing and presenting secondary content to the user. If the selection was determined to be accidental, the selection can be ignored. Thus, the selection would not register for billing purposes and secondary content would not be presented to the user.