I will agree with the fact that we did need some sort of UI with a button or on the HUD when it came to hints, we wouldn't be able to make the submission time if we resorted to making that work. So unfortunately it had to remain as it was, without any additional UI besides the menu. And even the menu after the build was made and pushed had an issue in it. So I do 100% agree with you that hints were meant to be put inside the game more obvious, we will for sure add it if development of this game progresses. As per the shaking part, that is only so it catches the point where it snaps into place, due to a rushed 2nd and final build, and changing anchor points in the menu, it messed with the positioning of the catch point, so the shaking is the best way to find the catch point to a naked eye.
My apologies if you found frustration in starting the game, I really hoped you would've enjoyed the game play!