Well, hopefully you'll be luckier than me, but I have to tell you my experience at Teppan Edo. I sat on the end, so I only had one person next to me, a teenaged girl, who'd just had her most unmagical moment-being seated next to a middle-aged woman.
I've been to WDW so many times solo, and eaten solo at so many resturants, but this was by far my most unpleasant experience (and probably hers too).
Ahh...teenager, forget it!
I want to say that I've been to the Biergarten once before with my mom before she passed away. And I had no idea about dining reservations back then. LOL! I remember a band playing though. Do they still do that?
I'm going to try it anyway...leave it on the list for next time.
I prefer being with someone on vacation; so, when I'm alone I don't feel as comfortable especially with TS meals. I'm not an introvert, but I won't go out of my way to push myself on someone, either.
I have struck up some excellent conversations at Disney, too with strangers. I will say those times are too few.
I don't have the option right now of being with someone on vacation right now.

So, if I want to do anything, for the most part, it will be solo.
I certainly don't push myself on anyone to talk with. Most times, someone else will start. For all my TS solo meals, went quite quick. The lovely decor, texting, doing my journal, taking pics...all take time. Plus, I didn't want to stay forever either. I did want to get back out to the park, but it was nice to sit, relax and be waited upon for an hour. I only made one ADR a day; usually lunch.
I did strike up quite a few convos with CMs, those were really interesting!
All in all, I had quite a good time. As evident, in my TR below. I did what I wanted, when I wanted, how I wanted. It was alllll good.
For the next time...Teppan Edo, Biergarten, perhaps tea at the Grand Floridian, maybe even Brown Derby.
