To say a small lie – to lie a little to avoid problems or hurting someone
To tell a white lie
To be caught doing something wrong – to be seen doing something you shouldn’t
To be caught red-handed
To feel sad – to feel unhappy
To feel (so) blue
To be different from others (usually negative) – to not fit in with your group or family
To be the black sheep
To happen suddenly or by surprise – something unexpected happens
To happen out of the blue
To have a very good chance – to get a big or lucky opportunity
To have a golden opportunity
To be careful or ready for danger – to be very alert or nervous
To be on orange alert
To be jealous – to feel bad because someone has something you want
To be green with envy