Leeneia: "Share-en" means saying the word "share" (with a long "A" and a silent "E"), and then saying "en" (as in the letter "N").

This does not rhyme with "baron" or "barren" (both of which have a short "A" sound) in US English or, apparently, in UK English.

Long "A" sound: Ayyyyyyyyy (like Fonzie used to say on "Happy Days")
Short "A" sound: Aaaaaa (like a sheep: baaaaaa)
Not to be confused with Ahhhhhhh (like the doctor tells you to say when he sticks the tongue depressor in your mouth and looks at your throat)