Stryker Product interview questions

I just had my first phone interview the HR manager at Stryker and should be hearing back sometime this week. I feel like I did really well, but it was hard to tell. The phone interview lasted about 20 minutes. She was really face paced in asking her questions, which made me feel like I had to keep the pace. She also sounded really happy well asking the questions so it was hard to get a read on how it was going.