Osomatsu San: Instruments
He kinda sits back and watches for awhile, not wanting to interrupt them while they were busy. After awhile he’d get bored though and come in to bug them, complimenting them on their skill and teasing them.
He’d immediately offer to grab his guitar so they could play together and would be back with said instrument in a flash, ready to make music with his beloved s/o!
He sits back and watches for a long time until they finished the song they were working on, he’d kinda clap a bit and ask them to show him a few things about the instrument they were playing.
He stays silent and watches until they’re done practicing, and helps them put everything away. He’s impressed with their talent and would ask about the instrument and how they got into it.
He immediately bolts in the room and starts dancing to whatever they were playing, saying how good of a musician they were and if it was a percussion instrument, he’d surprise them because he knows how to play those shockingly well!
He’ll wait until his s/o is done with the song they were practicing before sweetly telling them how good he thought they were. He might ask what songs they know and if they can teach him anything.