: playful and silly
: feeling or showing great happiness and joy
Reading the word, "chiqueada" in context, it seems to me that "giddy" is the closest translation I can come up with.
When I began to flirt with her she began to act like a giddy school girl.
I find that this is a close translation because it seems to match the gender of your "chiqueada". I have only ever heard the word "giddy" used with women. A giddy school boy would have a different name, and it probably would be against the rules to post it or describe it.
When I hear the word "giddy" I think of playful laughing by from a group of girls; gossiping and giggling, usually over boys they are interested in.
And, if the word "giddy" doesn't quite express what you're asking, then perhaps: