Adding bubble letters to your cartoon drawings is easier than you may think, so read on and find out how you can add some flair to the lettering in your artwork. To start off print any word that comes to mind. In the example here I use the word bubble. Try to print as cleanly as you can because in the next step will add thickness to your word and it will be easier to see the differences between the two of them if you're in lettering is easy to read. Print your word again exactly as you did in the.