help

i need lots of help
if you go to the main menu and choose text/ show glyph browser
then choose the text tool and pick a font
the glyphs in the glyphs browser show up
there is an option to make them much larger too
my question is this
how do i write the glyphs
i see th U+ some numbers ...is that what i must press ...when i press the U+ whatever i get a long nasty mess of uss and whatever i am trying to hold down...how do i use that code to get the glyph
pleeeeeeeeeease help