As an indispensable antidote to indulgence in organized sport or other strenuous physical activity, the Germans have achieved a highly developed pub culture, where various alcoholic libations can loosen the tongue, warm the heart, and soothe a troubled mind.
Pub-hopping is a favorite activity with all levels of German society, and can be a good way to meet new people or solidify relations already begun. Representatives of various nationalities make their way to their favorite pubs (Kneipen) regularly.
By the way, beer is the most favored of beverages here. Germans have for decades been at or near the top of the charts for per capita consumption of the golden brew. It certainly won't hinder your social life if you yourself like to throw back a mug or two.