Do not let opportunities like this go by. Trust me, when I was in high school and college I let my shyness get in the way and didn't approach any girls. Now that I am out of school, these opportunities don't present themselves anymore. Also when you are in school, society doesn't really judge you are trying to ask girls out, because that is what you are meant to be doing. It won't be so easy when you are older trust me. Make the most of what you have now.