Interaction with use having the "talk" text with brain icon when facing NPC

Sorry but this may seem stupid or might not be specific to this plugin. But I am wondering how to enable the NPC's to have a talk icon showing like the vanilla NPC quest givers have with the small brain icon and "talk" text hit use button. Any help is greatly appreciated. Thank you in advance.

Not posable as this is based of Baseplayer real player NPC  google and check out my Talking npc plugin

 Oh, that’s exactly what I’m asking about, but it costs $25, haha. Thanks for your response! I run a small server mostly for my friends, and I don’t have that amount to spend right now. Just want the damned npc to have a talk icon lol