^^Um...read the last line of his 3 line post^^

Just practice....Im no great freestyler or anything but to help you get in the swing of things you should Rhyme everything you see...

e.g. {Bin,Sin,Thin] etc. and keep on doing things like this......Then later on you'll discover that you can advance your rhymes to larger words and stuff..

Also...get a Thesaurus and up your vocab ALOT....That can never be a bad thing.....