Aggressive or passive start online poker tournament?

[ammje]

A normal tournament, I prefer to play passive, a tournament with KOs, I prefer to play more aggressive.

 

[mariale_1990]

For me it depends on many factors, but usually at the beginning I play very passive, without risking much, and trying to get some readings from my opponents, but if I play against regulars that I already know, depending on who they are, I can play a little more aggressive, but