Well i have a few really funny frome the 1st week i play l2
1) talk to npc (i use to think he was another player lol)
2) use SS with mage and SPS with warrior
3) like Koyuki said, run a lot (i didnt know gk existed)
4) the 1st time i saw a pk i asked him "nice, how do you get your name red!!??" guess what he did? ¬¬