Here are some basic etiquettes to follow when attending an interview :

Dress appropriately: Dress professionally for the interview. Anything which is too casual or revealing must be avoided.

Arrive on time: Create a good impression by being punctual and arrive on time for the interview.

Be prepared: Research the company and the role you are applying for. Prepare for common interview questions and think about how you can best answer them.

Greet the interviewer: Greet the interviewer with a smile and a handshake. This can help establish a positive first impression.

Maintain good body language: Maintain good posture, make eye contact, and listen actively. Avoid fidgeting or slouching.

Answer questions honestly and clearly: Answer questions honestly and to the best of your ability. Avoid using filler words like "uh" and "like," and speak honestly.

Ask questions: Ask thoughtful questions about the role, the company, and the culture. This depicts your interest for the job.

Thank the interviewer: Thank the interviewer for their time and express your interest in the role. After the interview, follow up with a thank-you letter or email.

Following these basic etiquettes can help you make a positive impression during an interview and increase your chances of being selected for the role.