Welcome to Subeta! As has advised, Questing is probably a super easy way to make sP. Some users also like to re-stock (which means buying things from NPC stores (Commerce > Main stores on the top nav bar) and re-selling in your user shop for a profit. This one takes a bit more effort to learn, but some users enjoy it (and it's a fun way to discover some new items)

Useful Links:

What to do on Subeta? FAQ Useful general information for newbies Customise your dashboard Finding friends (Chit Chat) SubetaLodge (Offsite item database, pet colours etc.)
Upcoming site event: Pandemic