Besides using simple blocks, you can insert Things that other people have built into your Place. Use the Toolbox in TPBlox Studio to browse.

ActionPrimaryAlternate
Move CharacterArrow keysASDW keys
Move Character (no tool selected)Click location with green disk
JumpSpace Bar
Look up/down/left/rightRight-click and drag mouse
Look side to sideMove mouse to the far right or far left
Zoom in/out and up/downMouse wheelI (in) and O (out) keys
Change Tool / Toggle tool on offNumber keys 1, 2, 3, ...Click on the tool
Drop ToolBackspace key
Regenerate dead or stuck characterCharacter regenerates automaticallyExit and then return to the Place
First Person ModeZoom all the way in
ChatSlash (/) key
Show/hide the Player ListTab key