You could set a timer, get out your equipment, and fiddle around with it while
brainstorming other next actions.
If you mean magic tricks: You could practice by yourself some
tricks you already know. You could make arrangements to perform,
ranging from casually bringing a deck of cards when you happen to
be going to a party, to advertising and getting things scheduled.
You could invent new tricks while playing around with your equipment.
You could read books about it or look for others with the same interest
to meet up with.
You could write notes about pleasant memories doing stuff with
magic in the past, and review them occasionally.
Basically: brainstorming next actions is a good next action, and
you can think about what would help you brainstorm, e.g. putting
on a special hat for that purpose (just to remind yourself that that's
what you're focussing on for the next few minutes), or going for
a walk if you think better that way, etc. Just "brainstorm" might
not be that great a next action unless you know how to start
brainstorming, e.g. "go for a walk especially for this purpose" or
"sit down with a blank piece of paper" etc.
Here's an idea: schedule in advance a time when you plan to
brainstorm on a particular topic. Then, as that time approaches,
your subconscious mind (or even your conscious mind) may be
busily thinking up ideas to write down.
I have a web page with some ideas, based on Edward de Bono's work,
on how to brainstorm etc.:
http://web.ncf.ca/an588/create.html