Some countries permit certain nationalities to enter without a visa in advance, but other conditions may apply for entry and stay.
If your destination allows others of your nationality in without a visa, do not automatically assume that you will not need one, especially if you are planning to stay for extended periods (i.e., to work, study, or immigrate either temporarily or permanently). In fact, it is a good idea to inquire if you’re traveling for any reason other than tourism. This includes getting married, speaking to an audience or congregation (even if unpaid), journalism, research, professional photography, etc. Check to make sure of your status before entry.
Schedule an appointment and report to your Embassy or Consulate where your appointment for a visa interview is scheduled, at least 15 minutes in advance before your scheduled appointment time. Make sure to carry necessary documents as listed in the appropriate sections.