There is no difference between 2D and 3D in this regard.we need tutorial video for 2D character discuses with other character .also how to freeze character from move during conversations and so on also i face problem when 2D character show bark . we player move right the bark show no problem but we go left the bark text Inverted. I hope you understand our problem
1. To freeze a character, see the second part of the Interaction Tutorial. It shows how to use Dialogue System Events to freeze characters during conversations.
2. To keep the bark text from being inverted, there are two options: (a) Use a screen space UI, such as the example on the Extras page, or (b) use an Always Face Camera component on the bark canvas. Make sure your camera is tagged MainCamera.