When to raise chips in poker?

When you feel you have the best starting hand.

raising in Poker is about knowing your opponent and how he perceives you. Remember, the most strength in poker comes from acting last. If your opponent is weak, you can use this information to raise the pot and get him to back down. But if you are first to act, then you need a stronger hand to raise him because you dont yet know how he is going to react. If he re-raises you, you are going to find yourself in a difficult spot.