1. Active or passive approach:
This depends on the mood but I do like to be passive since I am a passive person to be honest.
Does it really matter on the personality of a certain person?
Anyways, I feel the same way, it depends on my mood and my instinct of where I feel that I have the chance to win.
2. Odds or prize amount?
Obviously a higher odds with a lower prize.
As long as you have more chances of winning even with having a not bigger prize, it should be fine.
3. Reasonable ticket price?
The same ticket as I am buying right now $0.39(20 pesos), I'm good
For me, a reasonable price would be $0.20 to $1.00