We are planning on having our ceremony at a ballpark just before a local semi-pro game (we are fans). Instead of a traditional reception, we will stay for the game. Guests will have tickets to the game (of course), food and beer. We reserved a "party deck" at the ballpark for our estimated 80 guests, so space is limited and decorations aren't really an option... but I'm wondering if I should try to do some form of entertainment like games that don't require space (custom Bingo cards, Icebreakers, etc)? Or will the ballgame and socializing be enough to keep people entertained? We want this to be a casual, fun, laid-back feel... so we aren't looking for formal or traditions, but we also don't want people bored since we aren't doing the typical dance. Thoughts/ideas?