Decide where to place the monogram. Mark the center point of where your monogram will go with tailor's chalk or any fabric marking tool. It is best to make a vertical line and a horizontal line coming out of the center point of where your design will go.ecide where to place the monogram. Mark the center point of where your monogram will go with tailor's chalk or any fabric marking tool. It is best to make a vertical line and a horizontal line coming out of the center point of where your design will go.