Being a true friend means not trying manage a situation to get what you need, to avoid conflict, or merely to please, perhaps at the expense of other's growth or your own integrity. Beware of those tendencies, that may be habitual or even hidden from you.
To be a true friend, recognize friendship as a divine gift. See your friendship as something holy that exist in the space between you. Know that Love tends to our relationships. Trust Love's tending - and be willing to take a risk to be honest, to ask for what you need, to not try so hard. Trust Love to reveal to you how to best be a friend to someone else, how to be present with their pain or questions or confusion, how to love in a way that nurtures and respects yourself and the other person.
Be a true friend to yourself, as well.