When it comes to showing appreciation for good service, there are various synonyms for the phrase "give a tip." Some options include "tip off," "compensate," "gratuitous payment," "leave a gratuity," or "offer a gratuity." Other phrases might include "reward for service," "give a bonus," "present a token of appreciation," "show gratitude," or "acknowledge good work." Ultimately, the goal is to provide a financial or material token of thanks to those who have gone above and beyond in their service. Whatever phrase is chosen, remember to tip generously and graciously, as it can make all the difference in someone's day.