Couldn't quite break through the AA wall huh? We've all been there.

I suspect that the failure the fully open the first set you tried put you on the back-foot and you lost your confidence, right?

Monkeybuster is exactly right that you need to make your intentions clear. Three kinds of people will stop girls in the street. The ones trying to sell you something, the weirdos and the guys on the pull. If you're not selling something, you're one of the other two, and you need to make it clear which one straight up.

The "I like this certain thing about you" is good as it's obviously direct, but conversely that's why I don't use it. Like my FR from the other day doing day game. Both times I managed to slip in under the radar, but that's just how I chose to operate.

You need to realise that:

a) You're worth knowing / talking to,
b) She's privileged to have your time and attention
c) The worst thing that could possibly happen is you get told to fuck off.

Once you've go that in your head, you'll rid yourself of that AA and just start to enjoy the day-gaming.

Don't let it get you down though, and if I were you I'd get out there doing it again asap so you can blow out the cobwebs and not let it compile in your head.