Late Position Hand Selection

In late position your hand range widens when you're the first into a pot.
Of course it is still not recommended to raise with junk hands. But you should increase your aggression in the late position.

When you're not holding premium cards, folding to a pre-flop re-raise is OK.

In general: When action folds to you on the button, it's acceptable to raise up to 80% of your starting hands.

In case you want to bluff you have to consider the following:
-Stack size of your opponents especially the blind positions
-Your style of playing and how your opponents notice it. If you raise very often it might not be a good idea to bluff.