You need some healthy debate to stimulate your mind and get your energy amped up. So try not to totally surrounding yourself with like-minded people. It might make for a mellow and calm day, but it will also stifle your creativity and put some limitations on your opportunities. Seek out people who think and act differently than you do, and you will only benefit from what they add to your life. Whenever you talk to someone who changes your opinions, you grow.