The material now is getting a little complicated so it might be helpful to adopt a procedure the instructor of a class on (the notoriously complicated) Kant I took in grad school tried. In addition to asking questions during class discussion he suggested that we write questions as we read and submit them in advance for discussion in class.
As I was re-reading Quine I thought: what a good idea! So...if you have questions or comments, please comment on this message board and/or submit them to me in writing prior to the class at which you want to discuss them.
Even if you don't want to submit them, formulating questions as you read is also helpful in understanding what's going on!