The author of the article tried her hand at picking tea. The Tea Hotel can arrange for any tourist to do this for the day. Kericho is a small-Kenyan town that is worth taking a side-trip to visit. Tea estates span the entire area. You an easily get to Kericho from Nairobi by public bus in only a few hours.
To encourage you to read the article, we wont discuss it more here. But, if you drink PG Tips and are planning a visit to Kenya, make sure to visit Kericho and read the article before you go. It is very interesting (and not overly long).