Below are the steps to Preview Posts in WordPress.
Step 1− Click on Posts -> All Posts in wordPress.
Step 2− You can view Post. When the cursor hovers on the Post, then a few options get displayed below the Post name. Click on the View option as shown in the following screenshot.
You can see your post directly while editing or adding post by clicking on the Preview button as shown in the following screen.
Step 3− You can see your post, when you click on View or Preview.