Knaztip#1:
As a spy, Don't cloak as a scout. You'll run slow.
Knaztip#2:
As a spy, Don't cloak as a heavy. You'll run fast.
Knaztip#3:
As a spy, Don't cloak as a medic. It's weird how you won't heal people.
Knaztip#4:
As a spy, when you sap a building, keep moving around and try to sap it when there are alot of people around.
Knaztip#5:
If all-chat is on, don't tell people how your going to cloak as a medic and sap the sentry behind the CP.
Knaztip#6:
Worship Knaz, he is your spy-master-that-actually-sucks-at-spy