Complete the visa application online or with the help of a legal advisor. To begin the process, you must complete the following steps: 
1) Complete the nonimmigrant visa application (form DS-160) either online or through a legal advisor
2) Print the confirmation page of the application form to take to your interview. Photo: You must upload your photo when completing the DS-160 form online. Your photo must be in the format explained in the Photo Requirements.
If the process is carried out through a legal advisor, he or she must submit all the correct documentation to obtain your consular appointment.