The same applies to other types of contact. Phone calls, emails, text messages. If they literally fell, coming much more frequently than from someone else, the conclusion is of itself.
Remember that men for the most part are very conservative, besides paying their appearance much less time and attention than the weaker sex (for obvious reasons). If they drastically change their habits in this respect, it has to happen something extraordinary. Therefore, if a man, to provide you with favors, suddenly began to perk - began carefully to dress nice to tie a tie (although I could not stand him), use perfume, made a neat hairstyle - most likely, he tries to make a good impression on you. And he did so if he did not care what you think of his appearance? Hardly.
If he tries as much as possible to provide you with even small signs of attention - to hold the door in front of you to say compliment to present a box of chocolates or a bouquet of flowers, to offer help in anything - is a clear indication of his feelings.
Finally, remember that any, even the most modest and quiet man, there is pride. And some of the things on the part of women, it is often perceived very painful. For example, jokes, "jokes." If it allows you to do so - in his senses can not even doubt you really love.