Contact'

4 players and more

Form a circle… start the current discreetly by pressing the hand of your right hand side neighbour in a particular manner that only you will know, for example, a long pressure followed by two short pressures.
In turn, your neighbour has to repeat that gesture discreetly until it has gone round the full circle.
Once you’ve come full circle, check that your signal is still the same… otherwise start again.
If the signal is the same: next one!!!