When you’re in Asia, it’s common to tip service providers like waiters around 10% of the bill depending on how good the service was. In tourism, tipping is expected. For drivers, it’s recommended to tip $2 to $3 per person per day, considering how well they did and how long they worked. For porters on a trek, it’s suggested to tip around Rs 500 to Rs 600 per person per day, and for guides, Rs 700 to Rs 800 per person per day.