Just an opinion...
Have a medium to small sized pair of channel locks, preferably knipex, pencil/pen, small pad of paper, and under no circumstances do what that hog character said and show up with a stick rule. You will Likely be ridiculed on the west coast. 16' standard tape or 25' if that's what you have. No bob the builder crap and no monster 35' Milwaukee thing. Get some comfortable and light boots especially if you're in construction. A lot of guys don't wear what ironworkers and carpenters wear for boots because we stand/walk on concrete or car tops all day. Keen steel toes are highly recommended around these parts. Break in whatever you get before you're hired! I've seen a couple probies have to quit due to horrible blisters on their feet.