If you know the person's name even where that person is staying, you can have and use it and report it to police department. Don't let this make you a person that will ignore because it's nothing. Never go in a place by yourself, make sure you will always be with a friend...
no
Report it to the authorities.
yes
Stalking is unwanted or obsessive attention by an individual or group towards another person. Stalking behaviors are related to harassment and intimidation.
Real world stalking is when someone is physically stalked. Cyber stalking is stalking over the internet, usually on social media sites or via email, etc.
The word that means someone arriving from another country is "immigrant."
Contact the proper authority.
Synonyms for following (someone) include trailing and stalking.
someone who represents his country in another country
A third-generation American can best be described as someone whose grandparents came from another country.
The actus reus of stalking involves intentionally engaging in behavior that causes fear or emotional distress to another person. This behavior may include following someone, repeatedly contacting them, or monitoring their activities without their consent.
A refugee.