You can CATCH UP WITH everyone else if you run fast.
My sister TOOK UP singing; she's got a lovely voice.
Some children enjoy stamp collecting, but GO OFF it when they get older.
I want to learn Chinese so I've PUT my name DOWN at a language school.
My friends were all playing cards so I JOINED IN, too.
We SET OFF early and took the ten o'clock ferry.
registered to do something
started a journey
took part with others
get to the same level as others
stop liking
started doing a hobby