The NL100 was just because I was talking to renton on AIM while he was playing, so I sat with him on a few tables. I just wanted to get a feel for how the game played so I could give him some advice. Quite honestly, I remember playing laggier then normal (probably significantly looser), but I don't remember playing overly aggressive post-flop or getting out of line in any major way.

That said, the games I played in (only about 200 total hands) seemed like they played very tight passive, so it's possible that since I tend to play very aggressively post-flop that I stood out in a big way.