Most IAU-approved names are derived from Arabic and Latin terms. A few others derive from other languages. English-derived names are rare. If you use a private (unofficial) registry, you can choose any language you want.
If you don't want to tell the truth, at least tell the same lie to everyone. Keep your lies non-specific. Say "I went out", rather than "I went to watch...
Use online resources to connect with English-speaking friends, teachers, and language exchanges. There are always people looking for language exchanges, you just have to do a little research.
It’s wonderful that you are teaching Konstadinos a second language! It sounds like Konstadinos is a kinesthetic learner and likes to move a lot. You can use his affinity for...