In the named episode, how do you interact with the two "blue jammers" you find? I can not get any response from mouse or keyboard. Run right thru them and no type of dialog show up. Somebody's U-tube video show picking them up just like the other jammers and show a dialog when they ere picked up. Thanks.
These are called "reflectors" and will be very common items in puzzles later on.
If you can't pick them, it means you haven't unlocked them (and you should see them indicated as locked at the puzzle entrance). You can unlock them (and other items) in the main hall. Look for the reflector image, solve a tetris puzzle and the item becomes unlocked.