It's in the Thread tools!!
Create the thread, click "Thread tools" and Click onYou must be registered for see images
But If i make the thread first and then add a poll, others will see it without the poll first, how do i Add the poll while making the thread
You can't do that, you can only add the poll after you make the thread. And yes, others will see the thread without a poll if you haven't added it, they can only see it after you have added the poll of course.