1969 Expos at Jarry Park, the little bandbox that was home till The Big Owe was built for the 76 Olympics. The Expos were bad, but the park was a lot of fun, and the names, and the way the announcers pronounced them(think heavy French accent) were priceless. John Boccabella, Coco Laboy, Le Grand Orange(Rusty Staub), Manny Mota, Mudcat Grant, Maury Wills, Dick Radatz, Steve Renko, all led by Gene Mauch...the names alone were funny enough.
Montreal fans had some idea of how to act at baseball games, as they had the AAA Montreal Royals for years, but in general they made it up on the fly. Drinking, singing, and cheering for the slightest of reasons was totally normal. They had a dancing Beerman, singing peanut guy, fans pleading with umpires for calls. It was pretty good humoured, if not downright riotous.
A few years later, the Dawson/Carter/Raines Expos became a really good team, moved into the cavernous Olympic Stadium, but a lot of the charm was lost.