When you have learned what certain physical characteristics indicate, practise observing these indications amongst the people whom you know well. Try your skill at making the connection between the indication and the characteristics which, according to the science, it indicates. For example, go over in your mind all of the blondes you know and trace in their dispositions and characters, as you know them, the evidences of volatility, love of variety, eagerness, exuberance, positiveness, and other such characteristics. Take careful note as to how these qualities manifest themselves; observe differences in degrees of blondness, and corresponding differences in the degrees in which the characteristics indicated show themselves. Observe, also, how the various characteristics manifest themselves in combination. For example, note the difference between a blonde with a big nose and a blonde with a small nose. ANALYZE, CHECK UP AND VERIFY When you have analyzed yourself and your relatives, friends and acquaintances, you will be ready to begin on the analysis of people previously unknown to you. You will find them everywhere--in street-cars, in stores, on the streets, in churches and theaters, on athletic fields, in offices, in factories, in schools and in colleges. When you have analyzed them as carefully as you can and, if possible, have written down a brief outline of your analysis of them, check up and verify; find out how far you have been right. If, in any case, you find that you have been mistaken, find out why--study the case further. You have already demonstrated and verified your principles; therefore, either you have made an error in your observation or you have reasoned illogically in drawing your conclusions. Find out which it is and correct your analyses--then verify them. This is a practice which, if you are at all interested in human nature, you will find intensely fascinating. It is one which you can pursue for years and not find it monotonous. Not a day will pass, if you are diligent in this practice, in which you will not learn something new, something interesting, something valuable. Those who have studied and practised this science for many years are, almost without exception, the ones who are most eager and enthusiastic about making these observations, analyses and verifications. STUDY TYPES