Couple points here:
1) When you're improving your game, especially if it's not polished yet, you ARE going to come off as creepy to some people. I'm fairly aggressive in my approaches, and yes, some girls typically think i'm a bit creepy or too forward. But you have to risk creepy. It's a numbers game. Sure a couple girls may think you're creepy, but the ones you end up banging dont; they think you are a forward, confident man.
Now it's bad to come off as creepy within social circles. Being labeled as a creep can kill your reputation in close knit social circles.
2) This whole PUA movement has made popular the idea that cold approaches are the meat and bones of game. When in reality, you're much better off trying to meet girls through friends of friends, etc. I've probably had 10x the success with girls who i met through a friend. Random girls at the bar whom i have no connection to RARELY work out. And as far as day game....it IS quite weird to just go around "cold approaching" girls. I don't even like the term cold approaching, because it implies a canned line and an awkward, very forward approach where you are putting yourself out there. It's much better...let's say youre at the mall...rather than simply walking right up to a girl and trying to game her, just position yourself so that opening her seems like a natural thing. For example, you're shopping for clothes, right? You see a cute girl. Slowly work your way over, and check out the shirts by where she is standing. Then without even looking at her just say "hey can i get your opinion on something? what do you think of this shirt". 99.9999% of girls will be friendly and think this is a completely normal way to start a convo.
Contrast this with if you had walked right up to a girl and said "i saw you and thought you looked interesting, and had to talk to you." This is a fine line at a bar when she's given you the eyes. But during the daytime? In public? Kinda weird.
I'm not saying that you shouldnt work on daygame and approach girls in public you think are cute. However, there's typically a much higher payout running social circle game and gaming girls whom you have some type of thing in common with, whether it's a friend, or a yoga class, or going to the same school, or having the same class, etc. etc. Rather than just scattershooting at every cute girl you come across...focus on more reliable targets.