- Sat, 21 AprSeaton21 Apr 2018, 10:00 – 16:00Seaton, Seaton EX12, UKNot your usual B.S.L. course. This is a full day immersion course in Sign Supported English (speaking and signing at the same time). At the end of the day you will know approximately 200 signs (B.S.L. signs), be able to have basic conversations with each other, sign a song and had some laughs!