Like I speak English and Portuguese, learning Dutch, and (not doing it for the sake of a primarily English-speaking community) but I will often switch between the two, like saying “Bom dia/Oi” to someone or “Tchau!”
I may also falar assim and I don’t do it to show off, it’s just comfortable pra mim. I will mix in a few português words. (Not exactly like this but YKWIM, maybe).
Have a relative who has another language as their mother tongue but has perfect of my native language so we code switch a lot, I’m not fluent but I enjoy throwing in bits of what I know and they seem to appreciate it and encourage it
Weirdly, I kind of like parts of their language so I have lots of fun with wordplay and playing with the spelling and such and mashing them together for comedic effect like Sacha Baron Cohen does in Bruno