You ask questions about your homework/what you're studying..
If you have a phone, or anything, you can go to the app store(for iPhone) or Google play (for samsung) or go on the computer and go to youtube to let the people teach you.
The speaker is quite nervous.
Think of when people are married and sometimes one of the spouses gets "cold feet". It is not because they are sick or cold or even old. They are just nervous.
