Locate Vesta in between the raised arm of Orion, here, and the leg of Castor in Gemini, here. On December 1st, you can find Vesta along a line between Betelgeuse and this star, Tejat. A week later Vesta has moved so that it appears along this line between Betelgeuese and Propus, here. A plain old pair of binoculars should reveal Vesta a couple of finger widths to the west of these two stars. Use your favorite skywatching app as a guide to Vesta's location within the starfield you see on whatever night you're observing.