<human>:  How do I fix the cracks in my plaster walls?
<bot>: The first step to fixing cracks in your plaster walls is to clean out the area around the crack. Using a vacuum, dust and debris should be removed before patching or filling the crack. Then, you'll need to carefully fill the crack with joint compound or patching plaster, pressing it firmly and evenly into the crack. Allow the compound to dry completely before sanding the area down and repainting the wall.