around the wrist of your other hand, using your thumb and middle finger.
Notice how the fingers meet:
Ectomorph: The fingers are said to overlap or cross easily.
Mesomorph: The fingertips are said to touch without significant overlap or a noticeable gap.
Endomorph: The fingertips are said to remain apart and cannot easily touch.
This test should be viewed as a simple informal exercise rather than a scientifically validated method of determining body type or predicting how your body responds to food and exercise.
