Well, a good answer to that question could be that English is all around us. If you don’t believe it, why don’t you have a look at the T-shirts the people around you are wearing now?
These are some examples of messages in English I found on my students’ T-shirts on the last days of June. Why don’t you have a look and use a dictionary to know what they mean? You can find more examples on other posts in this blog.
Indauk 