Linguistic activity includes, first, speaking and comprehending. It also includes writing and reading, as well as thinking; not all thinking, but all that which is linguistically based, that which uses inner speech, the internal monologue. Most people probably engage in this activity more than in either speaking or comprehending speech. We should also add the processes of learning how to engage in these activities and expanding our capabilities, for example by the learning of new lexemes.
A person engaged in linguistic activity is using his or her linguistic information system.
- Lamb, Sydney M., "Being Realistic, Being Scientific", LACUS Forum 32: Networks, 2006.