What Can One Do To Better His/Her Chances At Joining/Pledging A GLO??

I am aware that you have to apply for the organization you wish to join, right? Ok and I'm sure "many apply but only few are chosen" (I've heard that quote so many times, not in those exact words though)..... Sooo with that particular statement being made ("only few are chosen"), how can one wanting to join/pledge BETTER AND INCREASE their chances of being CHOSEN? I've heard some say be active in school activities, attend the organization's events, make yourself known (positive) around campus, get to know others who have already pledged and are already a member of the organization, etc.., but at the same time they also make it informative to keep your decision discreet...HOW can you do that when you are attending their events, etc..,? Disregarding the previous threads I have made blurting out and making it known that I wanna be this and that, I went back and did MORE MAJOR research on other Fraternities before I came to a final decision of the Fraternity I was SERIOUSLY interested in....I now think I have made my final decision on what I want to pledge.... AND I WILL NOT SAY UNTIL I HAVE OFFICIALLY PLEDGED/IF I AM CHOSEN!!!!! Soooo WITHOUT further a due or all the negativity and sarcasm, Could YOU (Those who have already pledged or those who have not pledged, but can still provide some relevant information) give some advice/words of wisdom on how one can better their chances of being chosen in the organization they are interested in? I would appreciate an answer to all of my questions non-related to the topic also Thanks! *P.S- I DO HAVE my priorities straight as far as trying to get my education, Bachelors & Masters Degree, etc..,. I remember in one of my other topics someone mentioned how I shouldnt FOCUS on this so much and worry about my education first....I AM! Pledging is also a goal I want to accomplish throughout my college life (Something in life I've always wanted to experience and accomplish), which makes it a main focus for me right along with getting an education.....