In a sincere friendship，friends are willing to listen to your feelings and keep secrets from each other. Also, a true friend stands by your side all time when you’re upset and in hardship. If he or she is your best buddy, you always feel so comfortable to spend time together.

In a sincere friendship, friends are willing to listen to each other's feelings and keep secrets for each other. Also, a true friend will always stand by your side when you’re upset or in hardship. If it is your best buddy, you always feel very comfortable spending time together.