Getting kudos in OSRS takes place at the Varrock Museum. Members can collect up to 235 kudos, while free players can only get 5 kudos from ancient relics.
Before spending time collecting gold for supplies, you can buy OSRS gold to speed up the process.
To get kudos, start by visiting the museum's first floor and check your current kudos at the information booth.
The main ways to earn kudos include answering Orlando Smith's natural history quiz correctly and telling Historian Minas about completed quests.
For fossil-related kudos, go to Fossil Island or the museum to clean your discoveries. Each display needs 5 cleaned fossils of the same type. After completing a display, you receive 2 kudos and an experience lamp from Orlando Smith.
Large fossils split into plant fossils and animal fossils equally. The museum has 5 displays for plant fossils and 5 for animal fossils.
If you need 153 kudos, you won't have to complete every fossil display. Focus on the easier displays first, using small and medium fossils.
Clean your finds at the fossil cleaning bench, which you can find either on Fossil Island or in the museum basement. For the fastest kudos, start with the natural history quiz and quest-related kudos from Historian Minas.
These methods give quick kudos without needing to collect fossils. After that, work on fossil displays starting with the most complete sets you have.
Remember to claim your rewards from Orlando Smith after completing each display. The experience lamps provide useful skill boosts while you continue collecting kudos.