5. Use flooring or floor coverings to create different zones within the room
Your flooring can be a very effective décor tool. Use it to visually separate the two zones. While renovating, plan your living and dining room design to incorporate complementary flooring materials, one for the dining area and one for the living area, that beautifully merge to create the walkway.
Of course, if a major renovation is not possible, a similar effect can be achieved by using floor coverings. Multiple area rugs are a wonderful way to anchor each zone and visually compartmentalise the dining and living areas.
In this picture, though the dining and living areas are housed in the same, almost-rectangular room, each has an identity of its own. The walls have been kept grey and white in the entire room which allows for a smooth transition between the two zones. However, the furniture uses complementary colours and patterns to visually define the seating area from the eating area.