In Letter from the Producer, XLV, Yoshi said

I'll see you all next time in my seventh LIVE letter. And not long after that, I'll be headed to E3. If you're in America, make sure to drop by!!
I live in America however E3 is not open to the public.

They only let people who work in the video game industry, work in retail that sells games or are a part of the press, into the E3 show. Its not like Tokyo Game Show or the recent Gamescom in Europe where they let the general public in.

So how can we drop by to talk or visit with Yoshi?