Knowing a name is not going to cause a man to begin stalking a female. This makes no sense. Stalkers are enamoured by the physical appearance of their victim. They like what they see and stalk in a bid to get to know the person better.
There are other kinds of stalkers too, who stalk with intent to harm or mug the victim. Let us not create paranoia among youngsters. Stalkers have a different frame of mind, which you and I probably cannot gauge.
"A love affair with knowledge will never end in heartbreak" - Michael Garrett Marino
Generally, when the collegemates together in the bus or train they call each other by name. I heard the same many times. Even when two girls talk to each other also they use the name of the other girl.
Of course, if you call somebody by name in the public very strongly, it may look awkward so it is always better to have a talk as slowly as possible so that your talk will not disturb the others.
Since we advising youngsters, teenage girls spend a lot of time with other friends during their journey from college/tutions back home. They can help each other or their lady college mates as it would be easy for them to see who is following them and if capable confront the stalkers or complain to the authorities.
One day the head of the department heard his and advised us to keep the protocol of the office and address by the protocol way, as general public was watching us and it will give a wrong impression and a non-professional colour to us and the office itself. Though initially it was embarrassing and discomfort to use somehow adapted to that until both worked there.