1. This one is for women, as make-up can be a friend in this illusion of looking thin. 

a. A good tan can make you look thinner! 

b. The use of a lot of eye make up can make your eyes bigger. 

c. Pay attention to your eyebrows, for the same reasons as in b.

d. You can even make up your legs; yes, really, why not? 

2. This next trick works well both for men and women. 

3. The clothes you wear can deceive the eye as to your true size, and thus make you look thinner:

a. Don’t use clothes that are too colourful, as that will only attract more eyes on the areas that you really would like to hide. 

b. When it comes to skirt length, for those who want to to look a bit thinner than they really are, you should choose knee length skirts. 

c. Another little trick for men and women is to use vertical stripes.

d. Loosen the pockets, and avoid filling them up. 

4. Always be aware of the position of your body and your posture.

via ezinearticles