1. Non-Manual Markers (NMMs):
* Facial Expressions: BSL uses a wide range of facial expressions to convey emotion, attitude, and emphasis, often mirroring colloquialisms in spoken language. For example, a raised eyebrow might indicate surprise or disbelief, while a smirk could express sarcasm.
* Headshakes and Nods: These are used to add nuance and convey different meanings, just like in spoken language.
* Mouth Movements: BSL often uses lip patterns to indicate subtle meanings, similar to how we use intonation in spoken language.
2. Regional Variations: BSL, like any language, has regional variations. Certain signs or sign combinations might be specific to a certain area and considered colloquial.
3. Idioms and Sign Language Phrases: Just like in spoken language, BSL has its own set of idioms and phrases. These can be considered colloquial and might not translate literally. For example, the phrase "to pull someone's leg" might be expressed using a specific sign or a combination of signs that convey a similar meaning.
4. Context and Understanding: Like spoken language, BSL relies heavily on context to understand the meaning of signs. Colloquialisms are often understood within a specific social or cultural context.
5. Informal vs. Formal Registers: BSL, like spoken language, uses different registers depending on the setting and audience. A sign language interpreter might use a more formal register in a professional setting, while a conversation with friends might use a more informal register.
In summary, BSL expresses colloquial language through various techniques like NMMs, regional variations, idioms, and an understanding of context. There isn't a single sign for "colloquial language," but the overall communication style reflects informality and everyday usage.