If you have a tuner … Brilliant. Use that

The Notes are – E A D G B E
(From thickest to thinnest / Lowest to highest string)

Tune up Not down – If you have to tune down, go below the note an back up again

If you play with distortion you can really hear when the Notes sync up

If the open strings are in tune but notes or chords higher up the neck are not. Your intonation is out and you are going to have to adjust the bridge saddles