Avoid using heavy furniture such as big stuff sofas, wardrobes or bookshelves that have closed shutters. Instead if you utilize sofas with sleek frame (like the one out of bamboo furniture) this can create more transparency and will help in thought of more space. Also storage units such as TV unit, book shelves if kept open will reveal more wall surface behind them and reduce the "bulky" look. In a interior space that is definitely empty the perception of "small or big" is normally decided depending upon the dimensions of the space. The amount of the space defined by the boundaries of walls, floor and ceiling defines the space. The openings in the walls further help in decreasing the bulkiness of the space.