A good idea of a smart casual outfit, would be a colourful dress that has a sophisticated look
. Or smart black jeans, flat shoes or boots, and a fashionable shirt. You can always accessorise to add a bit of an edge. Stick to a certain colour scheme involving sophisticated shades such as blacks, whites, blues, purple and very occasionally a small amount of red. Steer clear of bright pinks. Always have subtle, fresh make up and don't over do it. A simple but stylish hairstyle would be ideal as well.