1) Nice ass is definitely highest on the list for visual & tactile stimulation. A tactically placed mirror can really enhance a BJ and of course, there is always the fun of a 69 where there are lots of opportunities for fun.
B&C Cups are in that just right zone, but bigger or smaller are not turn offs either. Nipple shape and your reactions to breast play are more interesting to me than overall size.
2) Less is more in my book. Wear what makes you feel good.
3) Massage can be a nice lead in on a longer visit. Sensual touching is always welcome and goes a long ways.