Well if you what you're saying is that you want to drink more on nights out, I suggest eating a lot of bread or other foods which are naturally starchy, it really induces a delay effect on the alcohol in your body. If you want to last longer in the evenings, just pace yourself, the body can break down one unit of alcohol in one hour = 1 beer, alopop, glass of wine. Also, as you drink more you'll develop a tolerance to alcohol and will eventually be able to consume more before getting drunk, up to a point.