If you ever have a comment to add, please feel free to do so. It doesn't have to be insightful or witty. Heck, it can even be a short 'lol' if I made you chuckle or a 'cool'. Conversely, if you feel compelled to write a ten page treatise on something I wrote, go to town my friend.
I rarely post quizzes or memes, and I don't respond to them very often either. My stuff is probably about 75% public and 25% friends only. My AIM name is in my user info, feel free to initiate a conversation if you want to, I'll try my best to chat. Ditto with e-mails if you'd prefer a more private conversation. I will usually respond to anybody that gets past the spam filters. Just mention LJ or something so I know you're not a random spammer type.
I rarely post really long entries, so I don't use the LJ cut very often. Usually only for spoiler type comments about movies.