In person
The ability to physically get together and have face-to-face interaction often.
They’re more involved in your life because they know you and already have some background and you can hang out in person
hugs
In-person interactions
physical proximity
Physical affection. Though.... not recently.
closer to everyday life off the screen
people to do IRL activities with
We can go to places together
I see them often, and can do other activities with them
Physical presence. But I've lived without that all of my life and can live without it for the rest of it.
In person activities and conversations, knowing me well.
I can go out and do things with them.
Physical companionship
They often have more niche interests than my real life friends
no difference
It's easier to share with them. I can easily show that I care about them by paying their share at dinner or offering them a spare ticket to an event, or help them out by giving them a ride somewhere, helping them pack up to move, etc.
With some friends, it can be easier to communicate offline because I am able to see their body language as we speak. There are some friendships I'd have a really hard time maintaining online.
At times they provide viewpoints I might not seek out for myself. I have much more control over who I interact with online, which is nice, but it's enjoyable and surprising to bond with people I meet locally whose online presence I'd probably hate.
Physical closeness
Can meet up with them regularly, physical affection (hugs, ect.), can attend in-person events and in-person activities