Greetings!
About being more friendlier, if you find some corner of the network you don't like, you can easily block them without losing much. There can always be alternatives. =)
About better integrating, I guess look for communities for stuff you like?
There's also some communities and bots for getting a kickstart on what to follow (bots are for the Tumblr/Twitter-like side of the fediverse):
- !communitypromo@lemmy.ca
- !newcommunities@lemmy.world
- !trendingcommunities@lemmy.cafe
- !lemmydirectory@lemmy.dbzer0.com
- @trending@mastodon.bot
- @trendytoots@mastodon.social
- an instance just for sharing posts based on hashtags
- a tool for generating RSS tracking bots on the fediverse, @birb@rss-parrot.net