I suggest paying attention to physical fitness - eat right, work out, be active.
Pay attention to your dress sense and grooming. If nothing else be dressed in clean clothes and keep the hygiene thing together.
Pay attention at work and try find a way to earn more money. Doesn't have to be a huge amount, maybe it's an extra shift or two. It's the principle of the thing.
Start hitting on her. Keep it light and fun. Don't expect sex as a follow up. Just make random passes at her.
Provide active leadership. Don't pick her brains for what she wants to do, just come up with little mini plans for a day or afternoon, state the plan and just expect her compliance. This again doesn't have to be dramatic plans, a simple "lets go to the park", "I'm going to XYZ on Thursday, want to come?" is just fine. If she doesn't come,
you go anyway.
Complete some household chores that require the use of tools. The use of tools is the
orginial alpha male skill.
If she displays an interest in sex, make it good for her, and as much as possible (without getting weird on her) finish in a man on top/dominant position. When you cum, cum hard.
If shes talking to you. Actually listen.
Play with the children. Note you don't have to do much more than that to get her juices going - just
playing with kids creates gina tingle in most women lol.
By all means comply with reasonable requests. Help out. But if she starts making stupid petty demands on you, its probably a test of some sort. I suggest you deflect such demands with humor and suggesting that she is just testing you rather than making a reasonable request. "You know I don't actually think you want XYZ, I think you're... being bratty / just looking for a spanking / haven't been laid in four hours". It's important to say this stuff with a big grin
Oh... and read my siggy.
