negreanu's column: tells comment?

[smbruin22]

http://www.chron.com/disp/story.mpl/sports/5270134.html

here's what daniel says at one point:

Yet another tell can be spotted by the way players look at their hole cards. Instead of looking directly at their cards, they'll squeeze them, just looking at the side of the cards. If they see three pips, for example, you'll know they've got a 6, 7 or an 8.

If you notice someone habitually squeezing their cards, try to detect what their hand is by analyzing how much of their hole card is viewed. That may seem a little complicated, but it really does work.... END OF DANNY COMMENT

what does he mean by 3 pips? and how can i tell what "they"
see?..... sorry, i don't have a deck of cards on hand, otherwise, i'd have a look.

i actually like danny's column. somewhat simple but very straight-forward and quite insightful.

thanks in advance for any responses!!