Method of generating private notifications between users in a communication session starts with an application server causing a communication interface to be displayed at a first client device and at a second client device, respectively. Application server receives from the first client device a. request to send a private notification to the second client device and causes a private notification sending interface to be displayed in the communication interface of the first client device. Application server receives from the first client device a confirmation to send the private notification to the second client device and generating the private notification at the second client device that includes causing a first avatar that is associated with a user of the first client device to be included in the communication interface displayed at the second client device. Other embodiments are disclosed.