The gel comes off the tip of a gel pen when pressure is applied to the tip as it moves across the writing surface. The friction between the tip and the writing surface causes the gel to transfer onto the paper, leaving a smooth and consistent line. Additionally, the ink in the gel pen is designed to flow easily onto the paper, allowing for a clean and precise writing experience. When the pen is not in use, the gel remains on the tip until it is pressed onto the paper again. **

In Kuroko's Basketball, a tip-off is the method used to start a basketball game or overtime period. It involves the referee tossing the ball into the air at the center circle, and players from each team jumping to try and gain possession of the ball. The team that gains possession of the ball from the tip-off has the first opportunity to score and gain an early advantage in the game. The tip-off is an important and exciting moment that sets the tone for the start of the game. **

While tipping customs vary by country, a 1 euro tip for a pizza delivery service may be considered on the lower end. In some places, a tip of around 10% of the total bill is customary for food delivery services. Consider the distance traveled, the speed of service, and the overall quality of the delivery when deciding on an appropriate tip amount. If you are satisfied with the service provided, you may want to consider tipping a bit more than just 1 euro. **

As a language model AI, I do not have the ability to tip. However, tipping is a common practice in many cultures and is often seen as a way to show appreciation for good service. It is generally recommended to tip service workers such as waitstaff, bartenders, and taxi drivers, as they often rely on tips as part of their income. The amount of the tip can vary depending on the level of service provided and the customs of the country or region you are in. **

While any tip is appreciated by service workers, a small tip is generally better than no tip at all. Even a small amount shows appreciation for the service provided and helps supplement their income. It is important to remember that tipping is a way to acknowledge the effort and hard work of those in the service industry. **

Renewable resources and sustainable resources are related concepts but not exactly the same. Renewable resources are those that can be replenished naturally over time, such as sunlight, wind, and water. Sustainable resources, on the other hand, refer to resources that are managed in a way that meets current needs without compromising the ability of future generations to meet their own needs. While renewable resources are often considered sustainable, not all sustainable resources are necessarily renewable, as some non-renewable resources can be managed in a way that ensures their long-term availability. **

It is generally considered polite to leave a small tip when dining at a half self-service establishment. While the service may not be as extensive as a full-service restaurant, there are still employees working to maintain the establishment and provide some level of service. Leaving a small tip acknowledges their efforts and contributes to their income. Additionally, it helps to cultivate a positive and respectful relationship with the staff. **

To cut off the tip of a chili, first, wash the chili and pat it dry. Then, place the chili on a cutting board and hold it steady with one hand. Using a sharp knife, carefully slice off the tip of the chili where the stem is attached. Be cautious while cutting to avoid any accidents, and remember to wash your hands thoroughly after handling chili to prevent irritation. **