Maybe some CBT? Im sorry your having this problem :(

Could you perhaps start with one on one with someone?..maybe ask a co worker out for a coffee??..
As justlet has said therapy can help a lot with confidence.. and unless you want to be more talkative there's nothing wrong with being on the quiet side..
I think a lot of us have a problem with some social anxiety.. big hug for you..x

I have this problem due to social anxiety. I have to focus on one person at a time at the office and in the public. More than one person and I feel like I don't fit in.

Hugs

Maybe just start with one co-worker.........if they have something at their desk that you can relate to, mention it to start a SHORT conversation to start. (Just to break the ice....don't feel like you have to talk forever, unless you both feel comfortable doing it.)

Maybe pick someone who seems nice, and compliment them on something genuine....could even be something like their laugh, or shoes, or purse or hair or eyes......you know. Or say that they look JUST like ______!!

How long have you worked there?

When I try not to look nutters (love the term), I am already hiding parts of myself. I am what I am and feeling free to be part of something requires I embrace myself fully. That doesn't require wearing a neon head sign or using it to justify disregarding others. Just letting it be okay when my nuttery shows. I be what I be.

Shedding the burden of hiding behind "normal" facades goes a long way in my own abilities to be part of something bigger than little, ol' me.

I'm kinda bad about stuff like that too...I don't like talking to other people in a formal situation, I guess I'm embarassed I might say something wierd or awkward....I'm good in laid back social situations (maybe too good, I flirt shamelessly (with men & women), I don't mean anything by it ,but it still has to be embarassing for my husband...) But like other people said, single out one employee who you find most approachable, compliment her shoes or somethin, just small talk, you will do fine :-) I used to work in a call center (I actually loved it) & I had to force myself to interact with others & it actually turned out really great I worked with some pretty awesome people & I actually had a social life with other people than just my regular friends & we had some pretty good times outside of work.

What Kim said.