There are five ways to display text in Alice worlds: using the say and think primitive methods, using the print instruction, adding 3D text objects, adding billboard objects with text images, and placing sound using the play sound method. The say and think methods display character speech and thoughts, print displays text in the output area, 3D text adds titles, billboards display flat text images, and any object can play imported or recorded sounds. Text and sound objects can be manipulated through their properties and methods.