I look at the subject, and the poster, as I scroll down. Afterwards I will scroll down again picking up those I didn't read the first time. Some I never read. Some I lose interest in and don't finish the thread. I will open posts made by certain posters because they always make a good thought provoking post, or they are funny, or raise controversial issues. Some topics or headers grab your attention, or seem interesting. Like reading a news paper when you only have time to read half of it, you get the good stuff first....