Unity IK LookAt Bone Selection

I've set up an IK system using the Animator component to initialise SetLookAt, it positions the head to "look at" the player within a certain "interaction distance".

I also have a script that calculates if the Player is near an NPC so you can initialise dialogue, I was hoping to use the IK system to position the body / specific bones not just the head so you could initialise dialogue and not have them talking to a table.

Not found much info on how to select a bone (outside hands and feet from AvatarIKgoal) and then face it towards the character.

Sorry if this is simple, any ideas?