If we talk about basic needs, then all wives want from their husbands is true love and care. She demands an open display of love. She wants your attention when she speaks.
Appreciate her work. Apart from that, she might need your small physical gestures of love like a pat in the cheeks, a warm hug or even a deep smile. There are other things too a wife expects but hesitates to be open about it. Make a note of all the mentioned things. Spread the word!