Split into pairs of equal stature and create a 5m square for each; pairs choose dodger (A) and tagger (B)
Dodger (A) must evade tagger (B) by running around inside the confines of the playing area
(A) must dodge and deceive (B) to wrong-foot them
(A) should stay out of corners
(B) must tag (A) below the shoulders, and decent contact must be made by several fingers or a palm: a single fingertip doesn't count!
Every time (B) tags, they call out their tally of tags
After 1 minute swap roles; try to beat the other player's score.
Use a (stop)watch to keep the time.
Progression: Tags must be to the player's back/backside.
This makes it harder for the defender.