As a corallory to the "GUSTAR" usage, I'd also like to give some options to overuse of the "me gusta" phrase. Why? Because I start to feel retarded when I keep Parroting out "I like it", "I like it", "I like it" when presented with objects or ideas.
me gusta. I like it! (it is pleasing to me.)
me interesa. Interesting! (it is interesting to me.)
me fascina. That's fascinating. (it is fascinating to me.)
me encanta. I adore it (love it). (it is adorable to me.)
me importa. That's important. (it is important to me.)
me falta. * tricky one! More of a comedy term, it means that you are lacking as a person without it.
me alegra. It makes me happy. (it is happy to me.)
me extraña. I am surprised. (it is surprising to me.)
me basta. It is enough. (it is enough/sufficient to me.)
me aburre. Boring! (it is boring to me / it bores me.)
me molesta. It bothers me. (it is bothersome to me.)
me fastidia. It annoys me. (it is annoying to me.)
me preocupa. It worries me. (it is worrisome to me.)
There are more, but those broaden the vocabulary.
[EDIT] It seems that speaking the direct object pronoun out of sequence is not unheard of in the streets, it is wrong by language standards. I edited this to remove the "lo" from the examples. In other words, "you will hear "lo me gusta" as a street-slang way of saying "i like IT", but it is bad Spanish to use it.
Keep in mind that the subject would FOLLOW the verb phrase in these instances:
"me gusta el libro" ... I like the book (the book is pleasing to me.)
Quizlet list for the above.