Solve mathematical and logical problems. Learn the principles of programming and cybernetics. Read analytical article from politics, economics, psychology and others. Learn to highlight the main ideas in the text.
Expose the perceived information criticism, doubt everything, even the most obvious things. Discuss with your friends on controversial topics. Ask logical questions himself. Consider opposing points of view and try to put them together in a dialectical one, parallel to developing each of the hypotheses.
Plan your life. Outlines the strong points for the day, week, month, year. Then analyzes the results. Make the analysis in the form of tables, charts, graphs. Mark the date and key events. So you can not only develop analytical thinking, but also competently organize their activities.
"Including" logic when dealing with people. Before you say anything, try to build in mind the possible scenarios after varying your phrase. After this analysis to select the optimum statement. This technique is very useful in the resolution of disputes and conflicts.
It is not recommended to focus on one hemisphere, because the harmonious development of the individual must be versatile. The brain is a harmonious "society": the development of one hemisphere stimulates the development of the other, while the "exhaustion" of one of the hemispheres leads to a general intellectual stagnation. It is no coincidence famous mathematicians write great poetry.