i was talking to a friend of mine and her sister but a couple times they would look at each other and kinda giggle. and I made a joke and said do I look funny or something? and they laughed and said no. so I am just wondering what that means.
It could be because one of them likes you. It could have been because they had an amusing conversation previously with you in the center. It might have been that they'd had a conversation about a word, phrase, or line that people say in a previous conversation that you kept saying. It could have been they had a running joke they couldn't forget and kept laughing about something that had nothing to do with you. It could be that they had the giggles in the first place and couldn't help laughing at anything.
Honestly? There's no telling. Don't take it personally and just go with it. Girls giggle, particularly with their best friends/sisters.
One of them has a crush on you and thinks your cute/hot, the glancing and giggling at each other is the-"OMG he is so cute/hot!" giggle giggle, glance-"shut up your embarressing me!" giggle giggle, blush, even though no words have actually been exchanged, it's an eye convo, wink, wink, I know what your thinking, lol!
You must have her in a bit of a stir, hmm...now you got to figure out which one it is, suggestion, the one initiating the glacing giggling is the teaser, therefore the one responding to this with a giggle is the one that is crushing on you. x