Yeah, if there was any chance he was into her, or going to be into her, this would have increased those odds, not decreased. Doing little embarrassing things like that is actually a great tactic if someone was specifically trying to make someone fall in love with them. Lol. So, don't worry if it was embarrassing. But most importantly, don't dwell on it or dread it happening again. There is a reason it is a common trope in movies that people are fumbling totally normal actions around someone they have a crush on. It's going to happen again, and you want it to. Just don't force it, cuz forcing it and getting that wrong would probably actually hurt your chances.