What you two do when it's Earth Hour.
In honour of today ( earth hour ) please take part in this and make the world a better place.

Steve.

The two of you would lay on the sofa, all cuddled up. Reading one book each, every once in a while he would give you small kisses just to show his love for you. When it was all over, the two of you would already be fast asleep in eachothers arms.

Bucky.

Bucky wasn't a fan of the dark, but he would make an exception on this day. You would light candles all over the living room and then you would grab Monopoly. The two of you would sit on the floor and play Monopoly for more than one hour, your laughs would echo through the whole building and when it was all over , he would carry you upstairs and eventually you both would fall asleep.