In the industry, you’ll meet a lot of people. In your company, you’re most probably set to know a lot of people whom you’ll be working with more frequently. You wouldn’t want to be working blindly, or calling out to someone whom you don’t know the name of, would you?
Since you’re new at the workplace, it is most probable that they would ask about yourself. Know their names and play your part by returning them the question and get to know them as well.