I've experienced this a lot, and it helped me a lot too! (only to students, you've got to be writing)
If the boy is sitting in front of you then you've got to try it! It goes like this: You're writing something and you have your head turned to the paper but you can see that he's looking then just leave your head but turn your eyes to him.then slowly your head follows your eyes in his direction and maybe smile a bit. (and if you can do it then just raise one eyebrow)
This tip was submitted by an anonymous visitor to our website.