Your gonna need to show interest in her before she will show it for you. Start off with some conversation and I don't mean the weather but something such as a compliment (your shoes look good, nice outfit, etc.) and then see if she sparks a conversation so you can tag along if not talk about something that interests you and see if she has interest in what you like.
Everything else your gonna need to go along with cause these are just the first steps to making a good first encounter. Don't be negative even if things aren't going as planned girls like a confident happy guy so just be yourself and try to be outgoing.
Good luck on your relationship.