Noses are really quite simple to draw once you understand the structure of what you are looking at.There is difference between male and female, especially in width. The nose shape is created from two rounded shapes: the ball and the column. The nose is not cre- ated from lines.
The site of the nose is contained with- in a rectangle that begins in the forehead. It is as wide as the inside corner of the eyes on the female face and the start of the white of the eye on the male face.
The wings of the nose are about one- third the height of the nose, if you meas- ure from nose tip to the top of the eyebrow, as shown in this drawing.
1.Begin with the bottom
Create the bottom of the nose with lines.
Blend away the Lines
Shade this area, all the while remembering to blend in the lines of the nose. Resist the temptation to leave them in!
Create the top and sides of the nose withshading only. This will show the distinctionbetween the cheek and nose without usingany of those pesky lines.
This was the tip how to draw anose in a professional way but if you want to find simpler way just follow this photo..
Sources
A book by Carrie Stuart Parks 'tips how to draw noses and lips', internet..