This aspect lends an element of competition that sparks up all your interactions; whether that's in a bad way or a good one is up to you. Whether you're on the same team or opposing ones; whether you're playing a game, having an argument, discussing a movie you just saw -- you push each other to say what you really mean, to focus your energies and efforts and get more done than you would have on your own. Now, don't be taken by surprise -- this could be a difficult aspect to deal with, especially at first.
You kid with each other, making jokes at each other's expense, riding each other -- and your lover, especially, could take offense before they realize that you're both just playing around. If you can convince yourselves to be patient with each other, it doesn't take long to start to understand that you're just poking fun at each other. But then there's your opinionated nature to contend with -- you have plenty of opinions and you stand right by them, often at the expense of listening to your partner or weighing whether you're really correct in your own position. Over time, as you grow to trust and like each other more and more, you allow that helpful influence to start seeping in. You challenge each other on your beliefs, which helps you better define them. If you work together as a team, you find that the slightly challenging energy between you sparks creative action.