Follow the screen prompts. Press S (square), T (triangle), A (angled square), H (hexagon), O (octagon), F (flower), C (circle), or the spacebar (spiral). Or press W (for wild) to create your own by providing the angle.
Check out my video for more on how I drew the turtle and got started with the code: https://vimeo.com/314879021 There are so many ways to create these shapes. What is your code solution? To see similar turtle drawings in Python, check out my code at: https://trinket.io/python/d14f728aec