try clicking with the bottom right corner of the track pad or go to menu click controls and press the button u want to place blocks with
Press F5
press COMMAND button, hold that down as you press the letter R
Press 't' to talk.
You press T to talk.
Hold shift
t
By default you press [E] on your keyboard.
With the food held in your hand, press and hold the right mouse button to eat it.
if you are on PC press F2 and if you're in a macbook press fn F2. Then go to %appdata% or application support and go to the .minecraft or minecraft folder. In there, there would be a screenshots folder, go in there and you have the screenshots
Press the inventory button. Usually E or Tab.
Press CTRL but you need the mod optifine to do that
go to minecraft launcher>press options> press force update> press done> press the launch button.