This is an interesting question posed on a few forums I read regarding headship in marriage.
Here are six pointers for blokes:
1. Be selfless and always loving to her: Eph 5:25
2. Love her as you love yourself: Eph 5:33
3. Do not be harsh to her: Col 3:19
4. Be considerate, treat her with respect : 1 Pe 3:7
5. Grant her honour as she is a fellow heir: 1 Pe 3:7
6. Know you will be judged by God for what you do: Col 3:25
That is not a comprehensive list of roles, but rather gives us a flavour of what husbands are to aim for as part of the outworking of their headship. If we are not hitting these targets, then whatever we are doing is not headship in a biblical sense.
I think sometimes the headship discussion becomes all a bit too technical and hierarchical and talks about the actions of the man without due regard to the benefit for the woman. Would your wife volunteer 1-5 as being true for you?
If we look at the example of Jesus, he is inclusive to women beyond what his culture was comfortable with. On top of that Jesus cooked: John 21:9-12 and did "menial" tasks: John 13:3-5 normally reserved for servants.
So does headship mean we always get to decide everything? Well God commanded Abraham to obey Sarah Gen 21:9-12 when Sarah was closer to God's heart than Abraham was, even when Sarah had already called Abraham "Lord" (1 Peter 3:5-6).
Who else gets to be called Lord? Well - Jesus for starters. Did Jesus rule with an iron fist or was he worth following (or even submitting to) because of his intense humility, compassion and godliness? Because of his selfless love that cost him everything?
Maybe humble, compassionate and godly men are the answer, as they are worth "following".
Jesus was not some big softie though - he challenged hypocrisy, he hated sin, he lashed out at mammon, he was jealous for His Father's house, but he was also the fullness of God, gracious, compassionate, slow to anger and rich in love.
I don't see headship as something we "are" by rights, by some rudimentary biological difference, but rather a responsibility and calling we can choose to live in the fullness of, by the grace of God.
The flip side is that it is also something we can fail in, horribly, as Adam did. It is a duty we can only uphold on our knees before God, without a hint of pride or self seeking.