How do I register for a Scard Profile (digital business card)?

It's quite easy, and you may register by clicking or tapping on the hamburger button in the upper right corner of every page, even on someone else's Scard Profile. (That is known as a hamburger menu; it has three horizontal lines)

You can also read this article as it will teach you how to register for a profile on Scard - https://www.scard.business/article/how_to_register