Another good way is to learn different progressions, certain styles of music lends itself to types of chord progressions (ie blues I-IV-V, or 1-4-5 of the key of music being played). Start with the style of music you want to learn and look up different progressions associated with that style. You start picking up cues and can guesstimate when and where the next chord will be. The more you know through playing, the more you can hear. Also ear training helps a ton. Sing the intervals of the chord progression while droning on the key of the song. Cycle between playing the root of the chord, sing it, then play the key note of the song and sing the interval (the next chord's root note). This alone will really expand your ear.