Douzo yoroshiku means "Nice to meet you" or "Please be kind to me." This phrase usually follows "Hajimemashite" when introducing yourself. It expresses your hope for a good relationship with the person you've just met. It can be shortened to "Yoroshiku onegai shimasu" in more formal contexts. "どうぞよろしくお願いいたします。" (Pleased to meet you).

「はじめまして」の後に続き、これからよろしくお願いします、という意味で使います。 「どうぞよろしく。」