To italicise, place the text to be italicised within {\em }.
To embolden, place the text to be emboldened within
{\bf }.
For example: {\em plural} and {\bf NN}.
Remember to leave a space after \em and \bf, and after
other commands where these would otherwise run into normal text and so not
be recognised as commands.
Note that, if you combine a size changing
command with e.g. an embolden command, you should place the size changing
command before the embolden command: {\large \bf Results}.