Methods and systems are disclosed that access relationship data of a first user of an interaction system to identify a second user of the interaction system associated with the first user, cause presentation of identification information for the second user within an interaction interface and, responsive to identifying an event pertaining to the second user, cause presentation of a call-to-action graphical element associated with identification information of the second user within the interaction interface. Responsive to detecting user selection of the call-to-action graphical element, the methods and systems invoke an interaction function to facilitate an interaction between the first user and the second user. The interaction function includes at least one of a communication function enabling the first user to communicate digital content to the second user using the interaction system, and an augmentation function enabling the first user to augment the digital content using an augmentation graphical feature.