Hello
The Rabbits will need a safe base to retreat to in the room. Being a prey species they will be very nervous at first. They need a hutch/cage/kennel to call their own to retreat to. You dont have to lock them in it, just provide them a 'burrow' so to speak.
Initially it would be better to have them in a smaller area such as an enclosure. Whilst a full room will be great in the longterm, at the moment to them it will be an unfamiliar scary vast area. Their instinct will be to be on their guard for predators. Huge (to them) unfamiliar humans approaching will initially be perceived as a threat. Having them in a smaller enclosure with a hidey house in it will help them feel more secure. Sitting on the floor next to their enclosure will enable them to familiarise themselves with your presence. This can gradually progress to you sitting on the floor in the enclosure with them. Rabbits are naturally curious and eventually they will make tentative hops over to investigate what you are doing. Having a few bits of food for them on your lap will encourage their inquisitiveness.
This link provides a lot of information about the care of Rabbits
http://www.rabbitwelfare.co.uk/resources/?section=leaflets.html
I'd advise you to have a Vet accurately determine the gender of your Rabbits. Pet Shops and believe it or not Breeders are not always a reliable source of information and all too often new owners get into a pickle after a few months when their two 'boys' suddenly produce a litter of Kits..............
Good luck !