Playing hard to get?

So there's a kinda shy girl at work whom i sometimes talk to at the end of our shift for about 20m. She seemed interested in our convos. So i got her number but she is slow to text back. Its like i only got a 1-4 texts a day from her. Is this a sign to fack off and dont bother her? I don't know if she's taken either or not. What u think?
Interested
Fack off
Play hard to get
Other
Select gender and age to cast your vote:
Playing hard to get?
Post Opinion