How does Pittacus Lore use imagery in I Am Number Four?

lmagery:

“His hair is black, full of hair gel, carefully styled so it goes in all directions. He has meticulously trimmed sideburns, stubble on his face. Bushy eyebrows over a set of dark eyes. From his letterman jacket I see that he is a senior, and his name is written in gold cursive stiching above the year. Our eyes stay locked, and the class emits a taunting groan.” (pg. 53)

“They’re tingling now, as though needles are being stuck into my palms. Twenty-eight, twenty- seven…..The needles feel like nails now. Nails that have been put in a funace and heated until they’re glowing.” (pg. 36)