Watch the Dynamics online guitar lesson by Jennifer Batten from Rock Sauce for Rhythm Guitar
A very important element that is often overlooked especially by younger players, is the use of dynamics. Always consider playing much quieter in the verses and in the beginning of solos. If you stay at full force all the way through the song you loose the dramatic impact you could have had, and the listener gets fatigued. The impact of the variations of sections is also diminished. A tune should breathe with ebbs and flows. Dynamics are a strong element that Nirvana brought to the table for example, and it resonated with people in a big way. The quiet sections lead to a stronger anticipation of the chorus energy.