🪂Even though OpenSea's XP doesn't seem to be up to date, farming it is important to:

▶ "Buy"
▶ "Sell"
▶ "Make sensible offers" 
▶ "List your NFT" 

Another thing is NOT to interact with other NFT marketplaces (Blur and Magic Eden in particular). Interacting with competitors will hurt your score.OpenSea has categorized various NFT collections, which means that trading them will give a boost to your airdrop. For example, trading Gemesis, Doodles, Kaito Genesis, Azuki, Milady Maker and BAYC has a very positive impact on the XP you will earn.

Other whitelisted collections include: Nakamigos, Seven Peaks of Celestial Stars, K-16 aka Karu, Doodles Genesis Box, Kemonokaki, DarkNOUNs , The Sandbox (Land), Skyborne Genesis Immortals, The Memes by 6529, Fake Rares, Rare Pepe, Peplicator by Matt Furie, and InfiniGods. The boost is 1x.

SOME TIPS
-Make competitive offers on entire collections.
-Avoid buying/selling between your own addresses.
-Use the 'sweep' function to buy multiple NFT at once.