[SOLVED] SubTitles

I'm trying to use the WP Subtitles Plug-in and it tells me to "edit your page and/or post template and add <?the_subtitle()?> or <?get_the_subtitle()?> where you’d like the subtitle to appear."

I would like to SubTitle to appear just under the Title and be a smaller font and a different color.

Can anyone let me know where I should put this? I'm a little lost.

Thanks.