How to Highlight your face: Following the traingle method
It is pretty easy. And work with every face shape..because you're not just taking a random point and using it for all face for all face shape but working with specific points ( eyes, nose etc) of your face which may differ from face shape to face shape. So it is really versatile.
Before I begin, there can be a lot of ways to highlight your face. You can use a cream highlighter or a foundation, after you apply foundation or even before you apply foundation, specially if the cream highlighter or foundation is tad too light and you need help blending.
If you are using a powder highlighter, you should apply it after foundation>blush/contourer or any other creamy product that you're> compact or setting powder..it will last long this way.
You can also use both a cream foundation/highlighter and a powder highlighter if you're going for a night party look.
So I mostly do highlighting after correcting> concealing> foundation> contouring(blended) and then highlight
I use a foundation 3-4 shades lighter than my skin and a concealer brush to trace the region and fill it up. And this is how I trace (Open the image in a new window to see the original size)