Whenever I've had to take action I had an intuitive nudge from within, I lack the words but that's the best I can do. When I needed a new phone and made it my intention to get an iPhone on my budget, I didn't care how I'd get it, or when it'd happen just made the intention and ran with it. I was sat at my desk one day doing something that wasn't even relevant to that and I had an impulse to go look online at a store that sells secondhand goods, saw the exact phone and colour I wanted. Got up super early the next day and went to the store, bam! New phone for a cheap price. 

Repeating an old story here so I'll keep this brief, the other time I manifested my love back I felt the need to take no action, just carried on with my life, did scripting, read a lot, saw friends, all that good stuff. One night I got a text apologising for how he was towards me. 

If you get a nudge to take an action that feels right and will benefit you, you'll know what to do. If you don't get that, don't worry about it. Action isn't always necessary. 

That action is even necessary is a limiting belief. In my experience, it isn't or at least the moment you do it, it doesn't feel like an action. It comes natural like replying to an email you got or stuff like this.