On all of our RSSC cruies when you entered the dining room they would ask if you want to be alone or with others. We usually say with others and have happened on several lone sailors. Being that my first husband was a party pooper I did a lot of stuff alone and I always tell the solo sailors they are welcome to join us - don't be shy - just tell us you want company. We love it too. We've met some really nice people that way and enjoyed excursions, dining and drinking with some great new friends.