I would say a vodka martini (I would ask if the wanted shaken or stirred, unless the ask in a particular manner, then I'll assume the standard which is stirred) no vermouth.  It's generally assumed that all martinis come with olives, but unless they don't specifically request it, I tend to put it on the side, but I would rinse them.If it was a gin martini, no vermouth, then it's a Churchill.For the other, its very similar.  Vodka martini, no vermouth, with a twist.If they just said Martini, no other explanation, I would do the standard, which gin, and vermouth, with olive garnish. It varies from bartender to bartender, but for standard, I do a little under .25 oz, or about 6 ml.  Dry would just get a few drops, Xtra dry would be a rinse, and no vermouth I obviously put none.  The key is the dilution, and temperature.  I prefer the metal tins, because I can visually see it getting cold enough