Depending on the task and how time-critical it is, you might do any of the following:
Read & Do: One pilot reads each item and silently performs each item.
Challenge/Response: One pilot reads each item, the other pilot responds and performs the item or verifies that the item was performed previously in a flow.
Flow: Memory process used to perform either emergency items or to complete routine tasks in preparation for a checklist (emergency flows are normally verified after-the-fact with a checklist also)
For single pilot light GA purposes, Ii would recommend devising your own flows for each phase of flight, and then running the checklist afterwards to verify. The advantage here is that you can get things done when you need them without being heads down fumbling for the checklist, and then do the checklist at a more suitable time. Also in an emergency you know how to perform your flow without the checklist if necessary.