There is a lot of sign throw which you can know boy loves you…
1 He follows you with their eyes.
2 Give the Girl an opportunity to realize that you are fully alone.
3 He avoids excess mobile call
4 He always tries to talk with you by referring to any kind of excuse.
5 He always discusses with other girls about you, your study.
6 He always makes some funny moments for you.
If you see any of these signs then definitely he loves you.