If there is one thing I consciously do to push my boundaries and enlarge my capacity, it is talking to people spontaneously about amazing ideas.
I just do it to trigger something in the other person. It is not a comfortable thing for me to do but I do it anyway.
I have just written a post on my mantra which is You too can be more than you have settled for
I believe that one can only get out that comfort zone if one challenges oneself at every point one feels timid. So I start up conversations with people I am shy to talk to. I answer questions in class even when I am yet to arrange my sentences. And there is something it has done to me over time, it has given me access to more responsibilities that is bringing me out of the dark into the limelight.
In coming out of my comfort zone, I have applied for so many programs.
I am currently a campus ambassador for a leadership network here in Nigeria and also a parliamentarian in my school's union.
And a whole lot...
I herefore call out 
Enjoy!