I've seen different videos on how to make a perfect cup of mate. After putting loose tea in the gourd, some people cover the gourd and shake it upside down, some people shake it on its side, some people don't shake it at all. This is all in an effort to move the smaller bits (after you've right the gourd back up) to the top, so that when you insert the bombilla (metal straw with tiny holes at the bottom), the smaller bits won't be sucked up.
What is the proper way?