Mmmnnn....

Your post Card... I am not sure whether or not to call it Metagaming or just... something else. 

Ill roll your character's Int to see if your character really could have not only deduced to go to that EXACT place where they were and if he figured out how to use his Skills. 

INT roll: 31 - 10 (Int) = 21

Well... ok, ill allow you figuring out how to use Skills (as Han-Jee Han figured it out somewhat easily as well and his Int wasn't that high when he did)

INT Roll: 40 - 10 (Int) = 30

Ill allow you deducing to go to school. 

I want you to change just heading to the track field willy nilly on the spur of a moment. (as there owuld be no way to deduce that a club of 'Gamers' would be at the track field, that would probably be in a club room)

The Psuedospace is actually covering the entire school area, so instead you would have entered the Psuedospace the moment you stepped through the gate to enter the school. Then you could first (if your character tries out the door) realize you can't get in, so then you go around the outside of the school and discover the other Gamers at the track field. 

These changes work, as this way it doesn't seem like such blatant metagaming or "wildly guessed" logic. 

Sorry if I sound nitpicky, but I am just trying to avoid the cliche hurry and get the party together kind of thing (you gotta work for it ;3)