I would say I'm pretty dominant in a sense that I do take position as a leader in some situations. I can even be bossy, but never really a control freak unless under a lot of pressure. I would say my style of being dominant, or my style of leadership is one in which I'm looking out to make sure the whole group is happy and make sure everyone is working to do what needs to be done without conflict. I'm usually the one to take initiative in a group among friends or colleagues. Having said that, I usually have a goal or set idea of what needs to be accomplished. However, I do keep an open mind and consider ideas of others, even though I may sometimes like my own ideas better. I think I do it to keep the harmony in the group. Compromise is key, even when you're dominant or in a leadership position.
I'm an ENFJ, by the way. I know this thread was intended for INFJs, but I thought I'd share my insight as well.