Okie dokie. I spend more time searching for answers than I do knitting.
Ingrid posted this in another thread explaining how to add the second color (it was a red item with a white heart in it):
What I do is kind of hard to explain, but I’ll try. A few stitches before the color change, start weaving in the end of the white yarn by inserting your needle to work the red stitch, then put the white yarn over the right needle tip from back to front–counter clockwise–wrap the red, remove the white and finish the red stitch. This should catch the white yarn. It has to come up from under the red to work, though, so you may have to play with it a bit.
Do it for a few stitches before and you won’t have to worry about weaving in the end later.
It is [I]quite[/I] helpful, but can you explain how to “wrap” and by “back to front” would the tail be behind the right needle then?
Edit: Messed around with it and I came up with what looks like this. Does that look right? The white yarn seems to be held in place OK and it doesn’t show through on the right side.