If you have a deck on your home, you want to make this space feel inviting not only to family but to friends. Make it your outdoor living space, a place where you want to relax and entertain.
You can start with some bistro lights. You can use a string of Christmas lights with large bulbs. They can be hung on rails or above your deck in dramatic hanging ways. It creates a warm atmosphere, changing your deck into a glowing environment, similar to a out door eatery.
Add some colored chairs around your deck. Or cover your chairs with different colored chair pads. Using two colors gives you a rainbow effect. Paint the chairs if you use new cushions, so they match. It will create a inviting feel to your seating area.