For me, keeping it close always seems to generate a better burn on the shoulders, and it doesn't hurt my joints. If I cheat too much on the last reps of a set and the bar is too far away from my body, my shoulder starts to hurt.
Pull it close to your body yes. As Mav says, it is easier on the shoulders. There's alot of shear force coming down on the arms if you hold it away from you and that translates into a painfull lift.
I indirectly work my Tibia on calf work. When I do calves, I make sure that on the negative part of the exercise to let my ankles bend all the way. This forces the tibia to do the first part of a calf press and indirectly gives them work most obviously.
I used to work the Tibiais anterior but haven't lately, probably should, while not a flashy muscle pretty useful and helps prevent injuries that result if your calf is stregthened and this is not.
Just stand with just your heal on the edge of a stair or something and lift your toes up, I've heard of people hanging a paint can or something for added resistance.
if your Tibialis Anterior is weak you may get splint shins on long distance running esp if you have not been running for a long time. like when you start cutting after a long bulking cycle