Brioche sl1yo, brp1

The (sl1yo, brp1), I am not sure what is the correct way to do it as I have watched it be done differently. and then 2:31 of this video
Does it matter which one to use?

The second video seems much clearer at least for me, but basically the steps are the same, slip one, yarn over, purl 2 together. Use whichever video seems better to you.