DS not interacting much at daycare

I posted recently about the trouble I'm having dropping my 3yo off at daycare (in short, we recently moved from NY to FL and DS1 is crying every morning at drop off)

Well as of this week I have access to cameras so I can watch him throughout the day and just as the teachers tell me, within minutes of me leaving he's fine. This makes me feel SO much better...  However, as I'm watching at different times of the day I'm seeing that he's not very involved at least not as much as the other kids. I'll see the others running around, playing with one another and he'll be off on his own doing his own thing. Sometimes I see him interacting but more often that not he's on his own. For example, right now they are all sitting down for a snack and DS is sitting by himself at a table while the others are goofing around with each other at the other tables.

Do I worry about this and try to intervene in some way (really not sure how at this point) or do I chalk it up to him being him and dealing with the fact that my child may not be all that outgoing? I was a VERY shy child while DH was the polar opposite and this can still pretty much sum us up except I've gotten a bit better. But I look back at my childhood and wish so badly that I could have been more outgoing, I think it really held me back socially as well as academically and I just don't want that for my child...

Thanks!