Having a rough interview? Even if you give stellar responses in an interview, an interviewer expects other things but never tells you.
Questions
Interviews go both ways.
Nobody likes sitting silently while someone talks at them. Your interviewer wants you to talk with them.
Ask your interviewer questions about the work environment and the future of the company. By doing that, you're no longer in the middle of a nerve-wracking interview but having a conversation where both sides are building a relationship.
When you leave an interview, the company knows if you're the right person for the job. They want to know that you're equally confident about them. It would be a waste of resources to train you if, three months later, you realize the work environment isn't for you.