you have to practise this reliously if you want to be able to 'just do it'
    "ONE TWO THREE FOUR"
G|-----------------4---------------------------------------------|
D|-----------4-6-7---7-6-4--------------------------7-5-4--------|
A|-----4-5-7---------------7-5-4-------4-5-7-5-4----------7-5-4--|
E|-5-7---------------------------7-5-7-----------7-5------------5|