how do i use masks?

[{ Mars }]

Like the title says how do i use masks theres this mask called the gir mask credits to
Codename000 if you want to use it go to http://forum.blockland.us/index.php?topic=148026.0


Thanks if you replied
:D

[Ad Bot]

[{ Mars }]

I have it downloaded just i cant find it

[Kobewarrior]

Enable it, plant a brick, spawn it, open up inventory, click it, done.