Open sticknodes
There is button called “submit stickfigures” click that
There u can select the stickfigures u wanna upload
Fill in the name etc
Click submit

When you open the app, there’s a ‘submit stickfigure’ button somewhere around the import stickfigure option (I don’t quite remember). Tap it, agree to the terms or whatever they are and choose which stickfigure(s) you want to submit
Enter user name, optional description and optional tags
I think that’s about it