Picking with A Pick or Plectrum - Alternate Or Economy Picking

For most beginners, give them a pick aka plectrum, intuitively they may be able to hold the pick and pluck a string with a pick using downwards motion. This is same direction as strumming two or more strings on the guitar. Keep in mind however that picking can also be upwards, and for fast beats, many guitarists pick the down/up motion aka alternate picking. So while you are at it, generally try picking down/up alternate style.

And also keep in mind there's the economy picking. Here's a good take. Try this out also.