If after the completion of the above you have some spare time (ie put down the FHM whilst having a dump, only for a short while mind)
Try to get to grips with the airlines SOP's. Especially the normal day to day checklist drills, as usually the challenge.............response checklist should be exactly as written down on the checklist. Also at the same time practice on your cockpit posters so you know exactly where all those small buttons are.
Nothing will please the sim instructor more, than showing you have done your homework. Remember these sims are costing about £300-400 per hr. And the last thing the instructor wants to keep showing you is where that damn engine anti-ice button is. If your checklists are flowing smoothly then you can use the sim time to learn to fly the bugger, not learn where the buttons are.
Just to add a little motivation, if your company is anything like mine, seniority may well be decided on your performace in the sim and line training, it all helps. GOOD LUCK