There are some basic thing that you will need to think about, when trying to bluff in poker. Always think about taking advantage of being in position. Being "in position" refers to being the person who bets at the most advantageous time. This is the case, when you are "on the button": i.e. the last person to bid. When you are on the button, you are able to see who checks, raises, or folds, before you act. If the other players check, then this would be a good time to bluff. This is an advantageous time to bet. Bluffing may also be done, when you are out of position, although it doesn't allow you the advantages of bluffing on the button. Out of position, refers to having other players bid after you.
Have an iPhone? Check out all 200+ new features coming in iOS 13.