Every time John sings "Somebody slap me," and "can't be this happy" you should be doing the knee raise and slap, except at the very end of the dance.
1&2
Raise right foot, slap knee with left hand, lower right foot
3&4
Raise left foot, slap knee with right hand, lower left foot
5&6
Shuffle forward, left, right, left,
7-8
Rock forward on right, shift weight back to left
9-11
Vine right (step right foot to right; step left behind right; step right to right)
12
Touch left next to right
ROLLING LEFT GRAPEVINE, STOMP RIGHT FOOT AT END
13
Step right foot to right beginning ½ turn to right
14
Step left foot past right, completing turn to right
16
Stomp right next to left
17-20
Bump hips, right-left-right-left
21
Step forward on right & hitch left knee while turning ¼ turn into left shoulder
SIDE STEP, SLIDE, STEP, STOMP
22-23
Step left to left, slide right to meet left
24-25
Step left to left, stomp right next to left
26&27
Side shuffle to right,
28-29
Rock back on left, weight back to right
30&31
Side shuffle to left
32-33
Rock back on right, weight back to left
34-36
Walk forward right-left-right
37
Pivot ½ turn to right on right foot kicking left foot forward
38-40
Walk forward left-right-left
41
Pivot ½ turn to left on left foot
42-43
Step back on right at 45 degree angle and clap
44-45
Step back on left at 45 degree angle and clap
46-48
Stomp right-left-right
49-50
Raise right knee and slap; raise left knee and slap
51-52
Step right over left; step back on left
53-54
Step right to right; stomp left foot
55-56
Raise right knee and slap; raise left knee and slap
57-58
Step right over left; step back on left
59-60
Step right to right; stomp left foot
61-62
Raise right knee and slap; raise left knee and slap
JAZZ BOX, KNEE SLAPS, HIP ROLLS
63-64
Step right over left; step back on left
65-66
Step right to right; stomp left foot
67-68
Raise right knee and slap; raise left knee and slap