How can I cover an octogonal shaped window so I can still out?

https://www.hunker.com/13413629/window-treatments-that-allow-you-to-see-out-but-not-see-inside

How about window film?

Great ideas from Cheryl!

I was going to suggest a curtain and then thought about businesses where you can see out but customers cannot see in, I have seen this in restaurants. You can find these products to apply to the windows at diy stores, Amazon, and specialty blind shops.

Hello L, you could go with a film on the inside like the one i have attached will allow you to see out through the clear spots

Hi ! Home depot and Lowe's both carry a variety of privacy film that you cut to fit your window . Good luck !

I had one once and used the screen in it as a frame for a piece of lace. I actually 'sewed' the lace around the outside of the screen frame and then popped it back in.

Amazon has a great selection of window films in stained glass, privacy, lace, heat reflective, etc. The one way films will prevent people seeing in during the day but are slightly transparet when back lit at night.... https://www.amazon.com/s?k=one+way+window+film+privacy+day+and+night&crid=XLYN424AV7WY&sprefix=one+way+window+film%2Caps%2C247&ref=nb_sb_ss_i_3_19

Hi cover it with Contact for Window or Clings or a transfer....Best wishes

Privacy film like they put on car windows would be the best thing, you can get "limo tint".