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One method to achieve a kinetic control product is to decrease the temperature. Since different products have different reaction pathways, with different activation energies, you can control the amount of energy given to the reaction by controlling the temperature. At a certain temperature, it will only be possible for one reaction to proceed (i.e. you have reached the activation energy of either reaction), but not enough for the other (i.e. you have not reached the activation energy of the other one). By decreasing the temperature, one of the products may have enough energy to overcome the reaction barrier, while the other does not. Hence, the product you can get is the kinetic control product.
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