Files: file following the natural shape of the nails and always in the same direction. To get a square tip, keep the file perpendicular and straight. For a rounded or oval finish, place the file at an angle below the free edge of the nails and file the corners well.
Tweezers: gently pull in the same direction of hair growth as close to the root as possible.
CLEANING TIP: Wash it with soap and water. Dry well to remove moisture. You can also use a disposable paper impregnated with alcohol.