I haven't played this game, but I found these comments from the Adventure Gamer review which you might find helpful:
As you investigate, you’ll find many hotspots that Mobot, Julia, or Rachel can comment on, and there is now a button that shows all hotspots on the screen, which can be helpful to avoid missing anything in the far more detailed environments. If an object can be interacted with, left-clicking on it will bring up an option to examine, use or take the item. Most of the items collected by Mobot are not used as inventory (and those that are will be used automatically in the correct circumstances) but can instead be analyzed, a new function added in J.U.L.I.A. Among the Stars.
This may or may not answer your question. If it does not, let's wait for another player.