06 / Try it with attention
A useful pattern has a known boundary.
Write down both what your new expression can do and what it cannot yet do. You can ask for water, but perhaps not specify the bottle size; you can ask where the station is, but not follow three turns. That gap tells you what to learn next. Progress becomes more deliberate when the next lesson answers a difficulty you actually met.
Try it once slowly, then let your partner change the answer. Listen for what changes before choosing your next phrase.
Make three columns in a notebook: what you want to do, the expression you have checked, and an answer you might hear. Keep requesting something separate from asking whether it is available. Practise changing the object while leaving the rest of a familiar sentence alone; then let your partner change the reply.
When an expression does not achieve what you intended, avoid making it longer with words you have not checked. Return to the shared object, menu or address. Ask someone to model the exchange slowly. A short sentence whose limits you understand is more useful than an elaborate line assembled from unrelated examples.