You can use a photo of yourself across the web, but if you want to have some fun and maintain a semblance of anonymity on the web, you can use a cartoony avatar instead. You could dig up your old Yahoo one, but chances are you've moved on. You're using a Bitmoji and creating comic strips about your friends.
Then you move your hilarity over into Snapchat. You're sending texts, dropping images, recording clips, and maybe even making the occasional reference to your comics. Now you can go a step further. Don't drop a link. Add your Bitmoji directly.
If you've seen a couple of your friends flood their social feeds with single-panel comic strips starring people they know, chances are they didn't all suddenly learn how to draw at once. More than likely, they've all developed an affection for Bitstrips, a means for people to easily create avatars and inject them into comical situations.
There's an Android app out that lets you have fun from a mobile device, but if you really want to inject these characters into your daily life, you're going to want Bitmoji, the company's latest release.
As the name implies, Bitmoji takes your avatar and uses it to create a large number of emoji that you can then paste into your chats or other apps.