What are the major signs? 'standard'/regular signs?
Most Helpful Girl
Don't have sex with him until he asks you to be exclusive-one! IF you don't have sex there is only so long he will wait.
Beyond that (guys will go far to get sex, so don't do it!)
he calls you, not texts, at least sometimes
he talks to you almost every day, or every day
he asks you on dates, and pays-not to hang out at his place or yours
he asks you about your day, is really getting to know you
he isn't talking about sex
he acts like a gentleman/treats you nice and with respect1