Interest in potty

I’ve been showing more of an interest in the potty at school. I watch the older kids go to the potty area and sometimes wander over to see what they are doing. Sometimes I go to the potty and ask my teacher if I can flush it. When I do, then I wash my hands and return to playing. Today before lunch I went to the potty and sat on it (fully clothed) then got up and flushed it and then sat down again. I then told my teacher “Deta” (came out) but when the check my diaper there way nothing. I guess I should have mentioned that I was just practicing.