How do you tell if a guy loves you if he is introverted?

The guy will truly show his love by teasing you, thinking about you, telling you your beautiful etc. He will appreciate everything you do. (Even the things that don't involve him. Every little thing will make this guy go wild, if he loves you.) He'll always want to be with you no matter where you are or what he is doing. Even the smallest things will make this guy jump. He'll be there to protect you and comfort you through the hardest times.