Originally Posted by: Stephen QuinnA metronome can be difficult because often you can struggle to feel the pulse over the sound of your guitar. A drum machine can allow you to lock in with the beat much easier.

Its also a good idea to take a few minutes to get used to the rhythm. Clapping or tapping along with the beat before you play is a good idea.

I like this too...playing along.

There are some tools out there where you can play along with songs, others that allow you to play to a beat.

Key is, to practice playing in step/rhythm and being able to hear yourself doing it too.