The phrase "in the habit of" is often used to describe a behavior that someone regularly engages in. However, there are other ways to express this idea. One option is to use the phrase "accustomed to," which implies a comfortable familiarity with a certain action. Another synonymous phrase is "used to," which suggests a past pattern of behavior that continues into the present. Additionally, "prone to" can be used to convey a tendency or inclination towards a certain action. "Inclined to" similarly connotes a preference for a certain behavior. Finally, "given to" implies a strong tendency towards a certain habit or activity.