how to put emphasis on highlighted words ?

1 Are you going to wear " this dress " at the reception ?
2 "Ann" put up the Christmas decorations
3 why can "you" never be at work on time ?
4 "John" looks after the children when Shelia is at work
5 "Where" did you spend your holidays last summer ?

In writing? Underline the words you want emphasized.

In typing? Put those words in bold.