Every day in the Wiesn is a riot, you just can't go wrong. If the weather is nice (and you've got the day off, and probably the next one too...) then go around lunch, midday, have a relaxed beer or two, in the
beer gardens if the weather is nice, then take a brief break from beer and go on some rides to stir the adrenaline but make
absolutely sure you're outside your chosen tent by
4pm absolute latest to be sure of getting in. A handy tip here: You can see the tents from some of the taller rides, keep an eye on the doors and if you see them start to close then get over there sharpish. The back doors close last so if you see these shutting then you may be in for a tough time. Also note that not only do you have to get in to the tent but you must get a seat (generally) before you get served.
Choice of tent is largely a personal matter but I've never been fond of Hippodrome. Not all tents are as popular or attract the same crowd so read up on this board - for letching at young girls in
dirndls then Hacker-Festzelt - der Himmel der Bayern or
Schottenhamel - Tradition pur are probably best. If you want to be with rowdy English speaking foreigners then Hofbräu is for you. It's also easiest to get served there, but usually rammed full and honestly has an atmosphere that's nothing to do with the traditional Wiesn and probably the easiest to get into a fight too. Usually the last tents to close are 6,7,8,9,10 listed
here as they're furthest from the U-Bahn station that everyone uses like sheep, although there's a perfectly usable
Poccistr U-bahn station on the U3/U6 line that's much less busy. I've given you the German page as there's more information on it. As it's your birthday consider investing in
lederhosen. While this won't make you an instant hit with local girls it might help, cheap versions are widely available now, and rides you shouldn't miss to get an idea of the traditional 'fest are
Teufel's Rad, then to Toboggan.
Ooh, I'm getting thirsty, but we Muencheners have the beergarden season to get through first. Let's get down to some training...
Edit: Another handy hint at the Wiesn - Pace yourselves and don't forget to eat, brezn and halbe haendl being ideal! Last year on the first day there was a table of Americans (everyone goes 'tut') next to us. They, like us, waiting since 8am for the first beer which is served at midday. By 1:30pm the first of them was vomiting and they all got chucked out. Way to go lads...