During the interview the technical lead first wanted me to explain what it is that I was doing at my current position. I explained which technologies I was using in my current position. Since I was doing a lot of Java and Web Application development, I was very detailed about what our software and web applications were. This essentially led to a discussion back and forth as the pros and cons certain COTS products, programming languages, and platforms. This conversation seemed to let the interviewer know my expertise level.