You're right - you do need to first speak with your partner and find out what would make you both comfortable or uncomfortable. You might start out that conversation by saying something like, "I think it would be exciting to feel you, but not see you." It might be exciting for him to feel you but not be able to see you. Blindfolds are easy and simple...and it's something that people can be comfortable with doing. It's about building anticipation.
There are a lot of different aspects in BDSM. So, it's important that you do talk to each other about what you both would like or not like. Also, talk about the dynamic. Who would be the dominant and who would be the submissive? Make sure that you know of anything that might upset him or that you just aren't willing to do.