US passport gives you 30 days (visa exempt) on arrival. You can easily get a 30 day extension and experience the simple process to do this at the local immigration office (get up early that day!). You need proof of onward travel (or a return ticket) to board your flight to Thailand or they won't let you board. If you're staying 60 days, you can have a return flight prior to the 60 day period ending. It's highly unlikely that any airline wouldn't accept that return ticket as proof of travel out of Thailand. In the one in a million chance that you should have a problem at the ticket counter then you quickly book a $59-$69USD cheap flight to Vietnam or use the onward ticket website for $20. Have fun!
@Bob - Pattaya Thai must have a different name, it doesn't show up on Google Maps anywhere. I use that to get to any new business (it's suicide to search while riding). Or if you can name any business that it's next to.. Otherwise, thx anyway, I'll try Mike Motorbike.
Bob D'Andrea I know Soi Buakhao but a google maps search doesn't turn up anything for 'Minton'. Do you mean Mityon? There's one on Third Rd and one on S Pattaya Rd (close to Buakhao)..