IMO:
get into the fray, get into the proceedings, get into that kind of business/activity
similar to:
get into the act
- try to be part of whatever is going on
Everybody at the party wanted to get into the act and join with the
singers.
http://www.idiomconnection.com/gquiz.html#A1
or, another definition:
get into the act
Also, get in the act. Become involved in some activity or venture, as
in Everybody wants to get into the act on this offer, or I'm sure his
agent plans to get in the act and start negotiations. This expression
alludes to inserting oneself into a performance. [Mid-1900s]
http://www.answers.com/topic/get-into-the-act