These Practice pages can be utilized in several ways.

The recommended method is for two partners to be in vocal contact, each looking at the page in a different computer - perhaps one with a laptop. Using this method one partner would start by clicking on NORTH, the other on SOUTH.

Somewhat less satisfactorily, the partners can use a single computer, and alternate looking at the display, again one as NORTH, the other as SOUTH.

As a last resort, one person can click back and forth between screens.

Start by clicking one of the buttons; when the bidding is complete click the BIDDING button to check the "recommended" bidding.
 You are the Dealer.
 Bid this hand with your partner.
 The opponents do not bid.
 Your partner, NORTH, is the Dealer.
 Bid this hand together.
 The opponents do not bid.

After NORTH's 2♣ opening, SOUTH bids 2NT, showing a balanced hand of at least 8 points. SOUTH actually has 12 points, but the time to show the extra strength will be later.

NORTH's 3♣ bid is Stayman, asking SOUTH for a 4-card Major. SOUTH mentions his ♠s and NORTH bids 4♠, showing a minimum 2♣ opener with 4 ♠s.

Now SOUTH adds his 12 points to NORTH's 22 minimum and gets 34. He bids 6♠.
♠ K Q 8 7
A K Q 2
A K J 6
♣ 6

♠ A J 10 5
8 5
Q 7 2
♣ K Q 5 3