"For sitting on laps or rubbing against trouser legs, select colors that contrast your own"
Meow, me Casper, I do that to my female human. She's got white pants, and I'll go and sit on her lap. Nicely done from me, since I'm all black

"If one person is busy and the other is idle, sit with the busy one. For book readers, get in close under the chin, unless you can lie across the book itself."
Me, Kitty, I'm into this stuff. Whenever I see my humans reading something, I have to read it too, and of course, leave my tooth mark there. Same goes if my human writes letters, I'm there to leave my bite marks into all out going mail