These can be selected directly from the keyboard. If you are on an older version of android, you can download any emoji keyboard app from the google play store.
[header] How to add emoji to your chromecast name [title] Make sure that your device keyboard has emoji. [step] Before you change your chromecast name and try adding emoji, you must install an emoji keyboard on your device. [substeps] All android devices running any os after kitkat 4.4 come with native support for hundreds of emoji.