He is, for all intents and purposes, an NPC.
...Which means nothing for my concerns.
It should. I don't do all the lines for NPCs and they act pretty much as extensions of the players. It means something because there is some amount of assumed dialogue, detailed below.
we can safely assume that you can actually talk to him.
Dude, that's completely unrelated to the problem I brought up. I never complained about not being able to talk to him.
Again, no, not at all. Feel it safe to believe that if I specifically quote a statement of yours and reply to it, I am probably replying in a related manner. When you called him over I didn't put a single bit of actual dialogue in your turn, and the dialogue in your action only went as far as telling him you had a job for him, and yet, somehow, he came over there and did what you wanted. He didn't come down and spend twenty minutes asking what you wanted.
This follows the law of assumed NPC-PC dialogue. If two PC's are performing an action that generates public details (Something I write) then the amount of assumed dialogue is nil, otherwise it robs the PC's of their RP opportunities. However, if an NPC and PC are together and the NPC performs on action with public details, then we have some assumed dialogue. This to avoid the restatement of what has already been said, otherwise I have to A. Copy every single detail into everyone's different turn blocks, B. render every single detail anyone ever sees into dialogue instead of describing it, or C. double up and simultaneously describe everything while also having every PC/NPC in the game describe everything they're doing 24/7.
But, just for you, instead of you spending a turn doing something useful and advancing the plot, I'll humor you and you can spend a turn talking to Taric.
Charge, i love this bone spike
You're too close to charge, just a plain old melee attack okay?