If someone is neutral towards your goals and dreams, they're negative. The easiest way to spot a negative person is if they're not supportive of you and your endeavors. If they're not clapping when you succeed or encouraging you to go for it, they're not worth your time.
Peer pressure can make you or break you. Your peer group largely determines your success in both business and life. So it is critical to choose your friends wisely. Do they influence you to dominate--or do nothing?