If not Science and Technology, my go to would have been Singing. I had started singing when I was 5 years old. My parents observed that I have a good voice and I sing in tune along with the TV program, and they enrolled in private music classes in 3rd grade. Unfortunately, the music teacher moved to a different city after a few months and my music journey had a long pause.
I had been singing along with movies and TV shows for as long as I remember. When I reached my undergrad college in BITS-Goa, I enrolled in music classes again and learnt for a few years, on and off. Then again in Hyderabad with another teacher for a year. I currently sing in the chorus at the Art of Living Foundation Satsangs. Here is a recording.
I have learnt guitar for 1 semester in undergrad. However, I did not stick on and master it.