How do I build?

it's kinda hard bro

brick hill workshop

though this is better: https://tyjupiter.itch.io/brickbuilder
(not all shapes that show properly in brickbuilder show properly in the normal client so be aware of that)

you take some legos and you put them on top of each other

you can get brick builder or go to sets and create a sets and then edit the set to build