It's quite a simple catchy line which stays about the same throughout the song so here
it is :)
VERSE
G|--------9-7---------9-7---------9-7---------------|
D|-----/9----------/9----------/9-------------4-2---|
A|-4-4---------4-4------------------------2-4-------|
E|-------------------------5-5--------2-2-----------|
[ Tab from: https://www.guitartabs.cc/tabs/j/james_blunt/turn_me_on_btab.html ]
(THEN BEFORE CHORUS CHANGES TO)
G|--------9-7---------9-7---------9-7---------------|
D|-----/9----------/9----------/9-------------------|
A|-4-4---------4-4----------------------------------|
E|-------------------------5-5--------2-2-2-2-------|
CHORUS/SOLO
G|------------------|
D|------------------|
A|-4-4-2-2----------|
E|---------0-0-2-2--|
(LAST BEFORE VERSE CHANGES TO)
G|------------------9-7-|
D|---------------/9-----|
A|-4-4-2-2--4-4---------|
E|----------------------|