Laying out should include

locating rough openings, corners, and wall Ts
ensuring that the stud layout is 16 inches or 24 inches OC, as required by the plan
ensuring that door and window openings are of the proper width, +/- 1/16 inch
identifying wall plate layout marks
stocking the proper components.

Process/Skill Questions:

What are special wall-framing details?

NCCER Carpentry Standards

Level One, Module Six (27111-13): Wall Systems

Module Six (27111-13) describes the procedures for laying out and framing walls, including roughing-in door and window openings, constructing corners and partition Ts, bracing walls, and applying sheathing. The module also includes estimating materials required to frame walls.