A strong travel history that shows you always followed the rules can help your application. You should prepare evidence of work, family, or property in Nigeria. These ties help show that you plan to return home after your stay.

Make sure your financial records, employment information, and travel plans support the type of visa you want to apply for.

If you request a longer stay, expect more detailed questions during your interview. Officers want to understand your purpose and ensure you will respect the terms of the visa. Honest, clear answers always work in your favor. It may also help to get guidance from an immigration attorney before filing.