Watch the Tweak the Sections online guitar lesson by Ravi from 1-2-3 Songwriting
Now is a good point to play and sing through everything you have so far and do a little tweaking. Perhaps a chord needs to be changed or a measure needs to be added or subtracted. In many cases, you may make changes automatically while playing it through just because you naturally feel something differently than you did while creating it. These little accidents often become the part, so don't dismiss them too quickly. Even just simple changes in the fingering of a chord can help your vocal melody pop more. Experiment, revise, and refine.