Invitations to hosted tables for dinner is one of the real pluses on Seabourn. Even though I was travelling with my sister I attended the drinks for solos on the first night. I asked if I could be included in invites as my sister quite often prefers room service, and as a result we were both invited to join a hosted table on most nights, some of which she declined and I accepted. I/we met a mixture of solos and couples, plus of course the host which varied from guest speakers, dancers, singers, CD and other officers.
The Swan Hellenic Maitre D would ask when you arrived at the dining room if you would like to join a table, or have your own, which meant solos, couples and triples could easily mix for dinner and meet new people. After their (SH) demise, I struggled to find a cruise line that did it so well having poor experiences on Silverseas, Regent and Viking which ranged from being placed on a table where the other guest had already finished 2 courses, being seated with a party of 7 who where all travelling together and didn't appreciate a stranger at their table, and being told I could have a solo table and in future should pre arrange dining companions. How delightful it was on my first Seabourn cruise recently to be made so welcome enjoying the company of new aquaintances.