Example of Colloquial English:
Colloquial english is like whatever, its how people normally talk like, not how they write. if you are writing colloquially just say something that uses the grammar and words you normally use, you know.
Example of Formal English:
Formal English is format typically reserved for academic or journalistic writing. It typically follows a more strictly regimented grammar structure.\////////%/\/\/\/
1)be smarter (study more)
2)take care of yourself (dont look dirty)
3)be polite and confident
Learn the alphabet and pronunciations of the letters. ( this goes for any language) then learn the basics. What you would need to say when getting around.