Most of the time, I've had no interaction with the people we've sat with at Teppan Edo. Once in awhile, you get a friendly group, but that hasn't been my general experience. It's never been uncomfortable for me though- the wait staff is all friendly and the show is fun no matter who you're sitting next to. The last time I was there, I actually went solo, and it wasn't uncomfortable. So I think you'll be fine.