A great way to tell if someone is truly a friend is pay attention to how they respond when you share some good news with them. A true friend won’t immediately think about what the news means for them or your relationship with them. A true friend won’t immediately downplay something you’re excited about even if they feel it’s not that great. They will trust your judgement–if they don’t trust your judgement, its likely because they have predatory intentions with you and rely on what they perceive as your lack of judgement to manipulate you. A true friend wouldn’t be your friend if they felt they couldn’t trust your decision-making enough to be excited with you during such a moment. A true friend is someone that will do what they can to help you win and not be afraid to take an L with you.