There are a few ways to create Tweets on Twitter. Here we're using the field that's above the home feed.
You can just type into that field and click "Tweet" and you're done.
You can also Tweet using the button in the top right corner.
When Tweeting, there are buttons for adding photos/videos, GIFs, polls, and your location. Here we post a Tweet with a GIF.
Here we add a poll to our Tweet. You add your poll options and length, then post.