Bartenders oversee managing drink orders at the restaurant and to keep customers satisfied during meals or social gatherings. Bartenders have extensive knowledge of common drinks which they use to recommend drinks to customers, prepare cocktails, pour beers and properly decant wines. Bartenders also entertain customers who sit at the bar by providing stimulating conversation and excellent customer service while filling drink orders for other customers. Their role is to ensure that customers are of legal drinking age and then prepare a requested drink to their specifications.