An electronic device displays a messaging user interface of a message application, including a conversation transcript of a messaging session between a user of the electronic device and at least one other user, a message-input area, at least one avatar corresponding to a first other user included in the messaging session, and an application affordance. The device detects an input on the touch sensitive surface. In accordance with a determination that the input corresponds to selection of the at least one avatar displayed in the messaging user interface, the device displays a menu that contains a plurality of activatable menu items associated with the at least one avatar overlaid on the messaging user interface. In accordance with a determination that the input corresponds to selection of the application affordance, the device displays a plurality of application launch icons for a plurality of corresponding applications within the messaging user interface