Well I will do a bit more in-depth post in the future on this subject, but to answer that really quick:
- Always vote in the first 23 hours of the content being published on Hive. This is most important otherwise your curation rewards nosedive.
- Try to predict which post will be popular and people will vote on. There are many factors here:
a. How popular the author is
b. How good the post is
c. In this subject currently hot on HIVE?
Delegation is good too, though you loose your power and influence on HIVE...