Firstly, I’d gather everyone around and see if any cellphones work. If that fails, I’ll take a team to higher ground to both scout the island and potential dangers, bringing the cellphones with us to see if we have access elsewhere. We’d chart the island the best we can with materials available, carving marks in trees as we go to ensure the team does not get lost. As we find points of interest (rivers with fresh water, fish, fruit-bearing trees, etc) the tree-symbol system will get a bit more sophisticated.
As this is being done (I’d say it would take about a week or so before we can successfully gain our bearings) we’d have everyone start to build shelter; ribbing from tree limbs and rocks, foundation from dried mud and clay, ceilings from leaves. Considering our first and and only objective is to get off the island, we’d gather all metallic and shiny objects, placing them in the center of the camp with hopes that a nearby plane or helicopter will see the reflective glare. A fire pit is also of utmost importance.
I’d also attempt to fashion a crude radio device from the electronics we have using my relatively primitive knowledge of device and technology. Of course, considering we have access to all of the Collective’s knowledge, it shouldn’t be too tough finding someone that can fashion a real radio.
Roles I foresee:
@johnpowell is great with his hands and carpentry. Any and all projects go through him, as well as @Dr_C. Enclosed firepit that acts as a smoke signal will be first priority, shelter next. Able hands will help – that means all of us, save for the elderly. A working fish farm-esque pool will help considerably.
All elastics will go towards the hunting effort. @drdoombot and whoever has knowledge of physics will start to look for branches suitable for bows – spear fishing exerts too much effort and takes practice. We’d do well to create crude bows and arrows from what we have. Knives from rocks, as well.
Assuming this is a tropical island, all men and women of larger stature will learn to hunt well with these bows, as there is no telling what types of predators we’ll encounter (panthers, eep).
All men and women able with their hands will start to create rafts and nets to expedite the fishing effort. All reading glasses go towards building a telescope, in hopes that we might see land in the distance from higher ground, as well as survey the immediate area of the island. If we spot another landmass, we build a raft.
We wait.
And yes, I’ll be making out with @IBERnineD 99% of the time I’m not working on getting us rescued.