Real friends will help out, not just greet you in a shared setting. Would they buy you lunch if you forgot your wallet? Loan you their vehicle? Help you move

Real friends will help out, not just greet you in a shared setting. Would they buy you lunch if you forgot your wallet? Loan you their vehicle? Help you move? Visit you in the hospital if you broke your leg? Actively try to help you with life in general? As the saying goes when the chips are down, you will know who your true friends are.