Try not to think about what the guy is thinking and just be in the moment. Just be yourself and be friendly. In this day and age most people have both guy and girl friends. You have a ways to go before the implication is that it’s something else.
Transferring can be tough - maybe try rushing in the fall and see if there is a Greek group for you. It can be a fast way to make friends and have a place you belong on campus.
Hang in there. Real friendships take time.