How do I do this?!

Hey!

Name's PhilingFilms

And im wondering how to make the text interact with the background color of a solid. Im trying to make a intro of text that looks like glass then all of a sudden water pouring into the text wiht it over filling and covering the whole intro into water. I will make it look nicer and such but first i need to learn how to do this basic thing on Adobe After Effects CS6.

If you know how or if you have questions for me then reply below or email me PhilingFilms@gmail.com