You can refer to the following
1. First of all, you need to tidy up your appearance and dress before the video interview, keep it clean and tidy, and then find a clean background. You can take a deep breath before you start. Don't be nervous.
2. During the interview, you can briefly introduce yourself, such as: Hello, Manager Wang, I'm glad to attend this interview. Let me introduce myself first. My name is xxx, I graduated from xxx, and I have several years of work experience. Secondly, I will briefly talk about my work experience, what I am mainly responsible for in my work, what achievements I have made, and so on. If you are a freshman, you can state your experience in school and what you have learned.
Secondly, just answer the interviewer's questions. Be generous and leave a good impression on the interviewer.
Finally, I wish you success in your job search.