He's a loner, so leave him alone. Not all of us are social butterflies, and I am more like this person you describe. I don't go to work to socialize or make friends, I go to work to get the job done. I also don't make friends because I might be your boss one day and have to fire you, so there should be nothing personal about that decision.

Nothing and leave them be? Obviously they’re not big on sociality and prefer to keep to themselves. Nothing wrong with that. I’m more or less the same way. He’s shown he can be decent and friendly whenever he does interact with others, so it’s not like it’s hurting anyone. Why would anyone need to do anything?

I’m polite and respectful and helpful at work, I treat my colleagues to coffee and breakfast sandwiches on a regular basis, I’ve cooked for birthday parties and even just because I had extra and my colleagues expressed interest in sampling my cooking but I’m still very much a loner in my department, I get left out of most conversations in the room, sometimes it feels like a social club., and I’m not a member.

It’s too much, I’m looking at changing departments. The social interaction is over the top, the department is chaotic and sometimes disorganized, especially at the end of the month

Not everyone is social. But I would invite him ofc, ask him to sit with me at lunch if we had lunch at the same time, and maybe just try asking questions - not everyone is good at starting conversations. But if that didn't work, then I would just let him do his own thing and still be friendly..

I'd do nothing, he's probably an introvert like myself and I would let him be.

I would have no problems with such a worker..

People go to work to earn the money they need to live.. They do not live to go to work..

Avoiding deeper interaction at work helps one to avoid any kind of conflict..

""Don't mix work and pleasure"" is a good policy to live by..

Sounds like an introvert ,and why so many feel they must do something other then accept him is beyond me.fir introverts people suck the wind out of their sails,they loose their energy while extraverts get their energy from yapping with others introverts gain theirs when alone. Nothing wrong with either it just the way it is and we need to understand and accept it that's all. When and if he wants things any different he will just dont count on it.he is probably very content. Now there is a wide range from being either an introvert or an extravert so let people be who they are .

He seems civil and convivial.
No need to push him and make his life your life.
Leave him be and all will be well.

Respect his lifestyle just as you would like to have yours respected.

Not everyone wants to go to work parties, some feel they are obliged to.

This is literally me and I'd would leave them alone, but be nice to them.

Respect his personal boundaries and MYOB.

Sounds just like me. Not everyone is a people person and you shouldn't try to change them.

I leave him alone because I act that way.

I’m this guy, what’s your problem?

Let him be. He's not hurting anyone.

i would do this thing called mind ur own business 🙂

Some people like their own company

Leave him alone.

Let him do his own thing.

he just wants to be alone

Remember that still waters run deep.

If anyone goes splashing in those still waters be aware that the depth can be unsettling.

...he eats breakfast at work?

He’s shy?

Maybe he is a lone wolf. Nothing wrong with it.

Nothing. !

He could be a scopophobic. So do him a solid and STOP EYEBALLIN HIM!!