On which side is it better to err?

[Uniqueuponhim]

I'm still practicing my push-botting, but I'm clearly not yet perfect. I've found I still don't push nearly as often as I should, but that does bring up a question:

If I have a hand where I'm really not sure what I should do, is it generally better to err on the side of caution and fold or aggression and push? Overall, are you typically better off pushing more often than you should or folding more often than you should?