Giving a tip is an optional choice, i.e., you don't need to give tips to the people who meet or serve you in any way. If you love the vibe and the service of a person, it is suggested to give a tip as it will motivate them to do even better. The tip they receive will also be a great economic help for their family. However, if you don’t have enough money, it is not a compulsion to give tips. If you want to give any gifts, you are encouraged to do so.