Well what about learning other Spanish words? Reading is a good way. Pick up the local newspaper and translate all the words you don’t know. This takes a long time and can be frustrating but is very effective. I have also found it helps to write down the words you learn to get a visual of them as you memorize them. It is a lot easier to remember a word when you know how it is spelled. You can figure out the pronunciation and remember it better than simply listening to your friend with the very strong Spanish accent say it and trying to imitate.
Unfortunately sometimes it seems like the more words you learn the more you don’t know. I constantly learn new Spanish words and think I can now say what I want until I try to formulate a sentence and realize there are 5 other words I need. It is a never-ending uphill battle to learn all I need.