Yea saw this going around on dA and was like 'I should do this'
Now y'all know, I don't like physical contact.

Red- NO! - Don't touch me there, I'll probably feel HIGHLY uncomfortable, and will either hurt you, or stay away from you forever
Orange- Stop.. - I'll move away from you when you do it.
Yellow- What're you doing???- I'll look at you like you're crazy, but won't move.
Green- Meh- Go ahead, I won't care much, will still be slightly uncomfortable but not enough to care
Blue- YES!- Go right ahead.

As you can see, the only time I'm 100% okay with physical contact is with Nathan, the green for his though is because I'm ticklish there, and I'm iffy on him touching me there because he always tries tickling me.