This area follows the reception area of the exhibition stand, and is just as important as it. If everything goes well, your clients and interested people will pass here directly, so you can give them the time they need.
First of all, you may need a structure to separate this area from the rest of the stand, since ambient noise can complicate any personal communication. It is better for the insulation element to be transparent or translucent rather than opaque, especially if the stand is small.
For the commercial area, a sofa and a low table are usually installed to give it a more informal air, or a more reserved meeting room if you want the atmosphere to be more professional.
The ambiance of this area as a chill-out terrace is a current trend in trade fairs, with relaxing light bulbs and music to accompany very comfortable outdoor furniture.