Keep you on your toes:
To force someone to stay active, alert and focused on something

Shoot the breeze :
To spend time talking about things that are not important

Loose end :
To sort out the details, to solve all the questions

There are no flies on you :
You are not easily fooled

It never rains but it pours :
When something good or bad happens, similarly good or bad things tend to follow.

Take a back seat :
To yield

On pins and needle :
In an agitated state of suspens. Anxious and tense