Once you've finished the first needle you can continue knitting on the second needle in the same manner. This time you'll start from what seems like the bottom of the stitches on the second needle. To get them to the proper position so you can work them, slide them to the end of the needle so that the "bottom" stitch is at the working end of the needle.
Remember to pull tight on your working yarn when you knit the first stitch on the second needle (and on the first needle on all subsequent rows). Leaving the stitches at the beginning of each needle loose can result in little gaps (known as ladders) between the stitches, which are neither attractive nor warm.
