If you're the creator of the poll open the admin link and click the 'More' menu at the top of the page. You'll find the print option in this menu.
If you are a participant, click on the textlink 'Print' underneath the poll title. Keep in mind that you can't print hidden polls.
In both cases a PDF file will download which you can print.
To view PDF files, you need Adobe Acrobat Reader. The software can be downloaded for free (https://get.adobe.com/reader).