Tips to learn Spanish
I was born in Argentina and lived there for 30 years. I can say I am an native Spanish speaker. I moved to the States at the age of 31 with very little knowledge of English. After 10 years I can say I have experienced the process of learning a new language with very little, almost no formal education. Here are some of my tips that you can certainly use to learn Spanish as well.
Push yourself to watch TV in Spanish (use subtitles in Spanish instead of English)
Always use a Spanish dictionary to look up words you don't know, reading the meaning will increase your vocabulary and will provide more interpretations of the word.
Create a group of friends or go to places where you will be pushed to listen and speak in Spanish.
Don't be afraid to make mistakes.
To improve your vocabulary read articles of your interest in Spanish on line.
To improve your listening watch TV en Español.
Please share in this thread more experiences about learning Spanish or any other language. Feel free to ask questions and of course revise my own English. 
I will add more tips as soon as I can think of them.
Note: I highlighted all the tips in this thread for easy reading since there are many comments and opinions that are specifically tips to learn Spanish. Also I have removed highlight from topics don't represent tips.
