Which way do you tighten guitar strings?
So when the strings are "properly" (according to those tutorials) installed, you need to turn counterclockwise in order to tighten the bass strings, and clockwise in order to tighten the treble strings.
Which way should guitar tuners turn?
To tune a guitar with six tuners in a row, turn all the tuning pegs counter clockwise to tighten the strings. Loosen the string by turning clockwise. Always tune the string from a lower pitch up to the correct note.