If you've spoken with native English speakers, you know that we use a lot of informal phrases.For example, we might say... - "What's up?" instead of "Hello." - "I'll get in touch" instead of "I'll contact you." - "Gotta run!" instead of "I need to leave."Today I'll teach you 10 common informal expressions that you might not be familiar with. See if you can guess what each phrase means before reading the definition!Click here for the lesson text