It definitely depends upon the instance you join. witches.town is ridiculously social & has a bot that boosts posts (haven't figured out criteria on that yet), so there's a lot of following and interaction.
If you're feeling adventurous, load up the federated timeline and start liking/fav'ing posts by folks, check out their profiles, give them a follow. Inter-instance follows ensue!
If you wanna see/"meet" more people on your instance, load up your local timeline & do the same.