Demisocial 

Someone who is not exactly antisocial or introverted, just very particular about the people they hang out with or the places they go or the things they do. Inspired by the word "demisexual".

"Hey... are you going to Bob Sacamano's New Year's party?"

"Nah... I'm not really into big crowds. Don't get me wrong...I'm not a loner. I'm just Demisocial. I just don't have a good time at parties that big. 5 or 6 people playing poker is more my speed."

Demisocial by @JackHenryFaust July 3, 2023

semisocialize 

To attend a large gathering of people where mingling with strangers is encouraged (e.g., a party or bar) but converse only with the small handful of people one arrived with.

"Those parties are bullshit for meeting people. Everyone just shows up and semisocializes in their own little cliques."

"The guy throwing that party might be douchey, but let's go anyway. We can drink his booze and semisocialize."

semisocialize by maxkeepsitreal1 June 12, 2008

desocialize 

to deprive of socialization.

The man was desocialized and led an hermetic life.

desocialize by uttam maharjan July 31, 2012

digisocial

related to but not the same as anti-social. A person who is digisocial is popular and well respected online, but quiet and reserved in real life. A digisocial person is forgettable in real life, but has an otherwise unknown, yet huge, online presence.

I'm not antisocial. I'm digisocial. There's a huge difference. #followme

digisocial by electracsg April 8, 2009