AIBU regarding expectations of an 8mo?

[Drmum83]

Hope you don't mind me posting here- the behaviour/development section doesn't get much traffic. I'll delete this if you all bollock me...

Just seeking reassurance really, TIA

My nearly 8mo DD, for the last few months, has been displaying signs of shyness/not keen to socialise.
She's my first so I'm not clued up on the ranges of normal.

I take her to Baby Sensory and she has done other things like massage,rhythm time etc. We meet weekly with NCT babies and generally see a friend another day (who has a toddler)
My DD is meeting milestones, not crawling yet, interacts with me and DH and laughs and giggles when stimulated.
She is a different child, however, around others.

At baby sensory, I often have to pick her up and leave the main group for a few minutes at a time as she seems to get upset in large groups. I'll then make her laugh (often by barking like a dog!) and she'll calm down.
The NCT babies are all happy rolling around the mat, playing alongside one another. Occasionally they'll touch each other's faces and giggle. My DD sits on the edge, often with me next to her and is prone to random outbursts of crying until I pick her up and walk away.
Starting to think it's something i'm doing/not doing. She's happy as Larry once we get home and she's back playing with her own toys/feet.

Anyone any advice?! Hopefully you can reassure me that this is a normal developmental stage or just who she is. I'm happy with that, I just want to help her feel more comfortable in such situations in prep for the future!
TIA.

My dd was just like this. She is now 14, has lots of friends, does lots of extra-curricular activities and went off to Holland with guides for twelve days this Summer.....Although it is lovely that she has blossomed into a happy confident teenager, sometimes I wish she was around at home a bit more!!!! Just enjoy your baby - she sounds lovely.

Aww. I'm melting here imagining of all cute curious and tubby squishy babies.
Any way on to your question. I wouldn't worry, op, just like all people and children are different so are all babies. Some will go to anyone, as long as they are being interacted with, some get really stressed when their main carer is out of site. Like I said they're all different. Carry on taking her to the group though, to get her used to it and used to bring around other children, She will come around in her own time, but you cant rush babies, They do things in their time and their time only.