1. Make two paths: If you have a large enough space to put the two sofas in the living room, make two different paths that can be accessed by guests making it easier for guests to move to another room as a dining room or kitchen. Two lanes is good access for everyone in order not to run into each other and blocking the way to the room each other.
2. Use a distance of 18 inches. A distance of 18 inches is the right distance to separate each furniture (between the sofa and the table, or sofa and chairs) so that guests will be more comfortable passing between two furniture.