For men, use Mr. with the full name, or just with the last name.
For married women, use Mrs. And add the husband’s last name.
For all women, you can also use Ms.
Ms. Does not tell you if a woman is married or not.
Some more TIPS:
There is no general word and most people use:
With a man, to be very formal, or if he is a superior, use:
To be informal or rude, use:
Hey you; Mister
To be formal to a woman, use:
Madam; (M’am) Miss
To call a teenager, use:
Young man; Miss/Madam
To call a young child, use:
Son Sonny; Little girl; Dear
To call a policeman, use:
To call a waiter or barman, use:
To call a waitress or barmaid, use:
With a few others, use the name of the job:
Nurse, Doctor, Postman, Guard