"to speak of the devil"
to talk about a person you don't like
the person who you were talking about unexpectedly arrives
to have an uncomfortable conversation
"to skate on thin ice"
to do something challenging
to not like something you have to do
to be in a risky situation
"as clear as mud"
something brown
something confusing
something obvious
"break a leg!"
have fun!
good luck!
well done!
"to take the plunge"
to fall down (from a very high place)
to make a choice (especially between two similar options
to commit to a decision (often one that makes you nervous
"to pull someone's leg"
to make someone happy about something
to fool/joke someone
to make someone uncomfortable or anxious
