Hi,
You go for it is what I would say, I have been on Bost,New England,New York, tour FANTASTIC and Poland and Tatra Mountains, BEAUTIFUL.
You will straight away have some thing in common with every one you have all picked the same holiday, for variouse reasons so thats a fantastic conversation opener I think.
You do bond with people so quickley so dont worry,some you will like more than others but that's being human. I try and move around on the coach or meals so you are not always sitting with the same people this I find interesting. In USA meals where not all included so we eat out quite a bit with little groups like who fancys pizza, Mcdonalds, sit down meal etc...
Poland meals were included at the hotels at the end of the day, 1 hotel we sat wherever we wanted, the other hotel where we sat the 1st night we sat in same seats for the stay.
Do not worry you will not be left on your own for hours and hours at a time unless this is what you want. Some people are very happy doing a day tour, eating and then going to there room to relax and there is nothing wrong in that, others want company from breakfast time till there head hits the pillow, every one is different.
I shall be booking more tours with this company I feel very safe and secure with them. I do hope you book your trip up I think the Borneo one is very popular, from what I have heard...Have Fun!!
I do have a Husband, but he does not have as much free time or want excursion trips when he goes away I am 47.