These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Ho Yay: Sal and Dean. Particularly earlier in the novel where Sal is practically enamored with Dean (and his ways) and describes his handsomeness (the fact they were introduced while Dean was naked probably contributes.)