For the Macs:
Praat is in the applications folder in Finder. If it gives a warning when you open it go to “System Preferences” -> “Security” -> “General” to select the option to run it.
Recording
In the “Praat Objects” window, select “New” -> “Record Mono Sound…” (or Ctrl-R). Then in the “SoundRecorder” window, click “Record” (at the bottom left)
Saving
Click “Save to List” in the bottom right of the “SoundRecorder” window. If you want to save your file permanently, go back to the “Praat Objects” window and select “Save” then your file format of choice. Note that the formats containing “signed”, “unsigned”, or “endian” cannot be played outside of Praat.
View & Edit
Clicking on “View & Edit” in the “Praat Objects” window will open the sound window. In here you can pause by hitting (tab).