I remember, once I've found the proper play I should have followed already before "change please" was announced (and I was actually right! I should have played the board that way!)...
Once upon a junior national team member; won a few local competitions; 2015 Hungarian crossIMP pairs champ, 2016 Hungarian MP pairs champ, 2016 Hun national team champ - all with Miklós Dumbovich. I composed a few funny deals and published them in the national magazine. It was fun for me.
2D as weak2 after RHO opened 1C (is it not a convention? So sorry...)
Depends on the strength. With invitational hands we jump to 3♣, which is canapé, in many cases.
With game forcing strength we use relay bids, such as check back Stayman, forcing third suit, forth suit to ask the distribution of the partner.