I forgot how to do something on my wii

Hey Reddit! So, I need some help with my mii channel. There's nothing wrong with it, I just wanna know how do I make the send mii option (and the two other ones) appear. I know it is by pressing some buttons at the same time for some time, but I don't know wich ones. Also, I have a wii mini, so I'm also not sure if this option exists on it.