Summarize this article:

Before you can spool the line, remove the top part of the reel. Twist is counterclockwise until it’s loose enough to pull off the reel. Some beginner-friendly models have a button you can press to pop off this cap. Unwind any old line left over by spinning the handle. Close-faced and Spincast are different names for the same reel. You’ll know you have one if it has this cover you need to unscrew to reach the reel’s spool. Look for the small rings hanging off the bottom of the rod. Starting at the rod’s tip, run the new line through the holes towards the reel. Pick up the cap and run the line through the hole in the top. If you don’t do this now, you won’t be able to get the cap on later when you need it. Don’t attach the cap to the rest of the reel yet. Like with the other types of rods, the rod’s spool will have a small hollow in the middle where the line rests. Wrap it around this hollow twice so that you’ll have enough to line to tie in place. Always make sure the line goes on the same way the reel rotates. If it rotates clockwise, the line should be wrapped around it counterclockwise. The direction of the rotation depends on the fishing pole. Knot it against the reel so the line doesn’t come undone. You can do this with a slip knot, clinch knot, or arbor knot. Make sure the line is securely tied and tight before you move on. Use your free hand to apply a light amount of pressure on the line as you spool it onto the reel. This will keep the line tense, preventing it from tangling. Hold the line taut between your thumb and index finger, applying a little bit of pressure to keep the line straight. Turn the handle in the same direction you loaded the line, which should have been the same direction the reel normally rotates to unspool the line. For example, if you spooled the line counterclockwise, crank the handle counterclockwise. Load the line, but don’t fill the reel completely. The line should be about 1⁄8 inch (0.32 cm) below the spool's rim. The line should hang from the rest of the rod with no slack. Adding too much can make the line come undone, so you’ll have to spool it all over again. Grab the reel’s cover, which should have already been threaded with the new line. Twist it clockwise onto the reel to secure it in place. If you left the cover off, unwind all of the thread. You’ll need a lot of space for this, so try walking around and hanging the line on fences or other objects so it stays untangled. Then spool the line through the cover and onto the reel. Go back to the tip of the rod. Get a pair of scissors and snip the line beyond the tip’s end. Avoid clipping the line that’s hanging from the line guides under the rod.

Summary:
Unscrew the face of the reel. Insert the line through line guides at the rod’s tip. Push the line into the hole on the reel’s cap. Wind the line around the spool in the same direction the reel turns. Tie the end of the line into a knot. Pinch the line between your thumb and index finger. Crank the handle to load the line. Spool the line until the reel is almost full. Put the cover back on the reel. Cut the fishing line off the spool.