Free from attachments
The greatest attribute of a person is friendship. Because friendship means honest communication, great patience, the willingness to understand. Because it comes from an open mind, and such is a mind not attached to its own beliefs and opinions.
Any attachments do you harm, without you noticing perhaps. Any attachments make you addictive, irrational, biased, and it takes away your capacity and willingness to accept and even care about the experience of the other person.