The majority of Europeans on holiday tip their servers, according to a recent survey conducted by the online travel website TripAdvisor. The data, results of a survey of 2,500 European users of www.tripadvisor.com, revealed that 62 percent of English travelers tip regularly when on holiday, as do 58 percent of French vacationers and 44 percent of Italians. About half do the Spanish travelers surveyed think that tips should be included in the bill.