What are the best practices for using a finish nail to securely attach trim to a wall?

To securely attach trim to a wall using a finish nail, it is important to first pre-drill small holes in the trim to prevent splitting. Then, position the trim against the wall and drive the finish nail at a slight angle into the wall stud. Use a nail set to countersink the nail below the surface of the trim, and fill the hole with wood putty for a seamless finish.