Rhythm is overlooked by guitar players who usually practice by themselves in their room. We often forget the guitar is a rhythm instrument. Don't run away from your metronome or drum machine! The guitarist that can hold down the groove will get the gig before a fast lick. Fast lick guy is at guitar center annoying you while you are trying to check out your new guitar etc. No matter what your goals are, I want my fellow guitars to make music.
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Tips: Always use a metronome or practice with a percussionist to get perfect, unending rhythm. Always practice strumming with a metronome to ensure you are rock-solid and reliable in the rhythm section. (Source:wikihow)