Just look for the large group of weirdos wearing coaster T shirts and shouting "Bench".
Just ask people if they prefer Towers or Europa, and if they say the latter, then it's us lotBut what if I attract the wrong weirdos? Dammit there's a dress code as well, I'll have to dig out the Blivvy t-shirt now.
This was the group photo last time...I'm sure one/all of us will be in some/full coaster/park gear