If you determine that the traffic generated by a specific keyword is more valuable to you than other keywords, you can go online and immediately raise your bid for that term. You will instantly increase your traffic.
It would be a good idea to even track the patterns of which days and times generate the most sales from Search Engine traffic. During this prime time, you should raise your bids to increase traffic. As soon as the slot ends, you should lower your bids to the old levels.