Some signs that might indicate a man is in love with someone are that he compliments the person's character, celebrates that person's accomplishments and pays attention to details of the other person. Additionally, he may indicate that the person is on his mind often.
Another sign that may indicate a man is in love with someone is that he talks about the future with that person. He may also respond to texts quickly, support a person's dreams and spoil a person. He may show love in his willingness to act silly to make the other person laugh.
Additionally, a man may show love by the fact that he takes the other person's advice seriously and follows that person's recommendations. This shows that he respects the point of view of his loved one and listens when that person speaks.