Just because the 70's style is in, that does not mean tat you have to be out in bell-bottoms and sequinned covered tops. You can still wear your modern styles with different 70's influences.
Like for instance, wearing that tight sexy short dress that came into style in the late 80's and has never left us. It has become a part of every hotties wardrobe. You can assert that 70's influence by choosing nice earthy colors and patterns which were prevalent in that time. Plus of course the glamorous style of the early 70's included gold jewelry. and don't forget those large thick-framed eye-wear with irregular shapes, which came over into the 70's. you can complete the look with a splash of color. Those statement heels and red lipstick to turn heads.