To be honest mate that offer might have not come across the right way and might have sounded like a matey thing , like me offering a girl in work if she wanted to come home and play some xbox so to speak haha
Give it a few days mate , a week or so and then just ask her out on a date. In fact don't beat around the bush and just say you want to take her out one night and that way get the answer you want. If you paint it up then it might not sound like you want it to, but to word it that you mean a date then you will get your answer.
In fact say something along the lines of this.
Hi, I was wondering if you like to go out sometime for a meal or to grab a few drinks?
Or
Sorry about the other day, I didn't mean to ask you for a game of pool. The truth is I really like you and I was hoping you would like to go out sometime for a meal or drinks?
Just something more snappy like that. What it means is you will get your answer. Believe me, the answer is already set here, if it's a yes or no then she will already have that answer for you so like schnodingers cat (obviously wrong spelling there) the cat is alive or dead, you just need to open the box to find out
And if the answer is yes then fantastic! If it is no then don't take it too much to heart because it is tougher to ask someone out in work especially someone you see on a daily basis. Much easier to ask a random girl out, but these things do happen and the main thing is to ask her and not leave it to chance.
See what you're saying mate, maybe I did have a chance and have blown it now with a such a poor attempt haha. The exact conversation was this;
Me: "What are you doing later?
Her: "Nothing I think, just going to go home. What about you?
Me: "I'm meeting my mate for a game of pool and a drink, it's that (so-and-so) place.
Her: "Oh are you? Well it's good for some isn't it?"
She takes a phonecall, I stay and stand there like a lemon waiting for her to finish.
Me: "Come with me, it will be a laugh and it's by your place isn't it? Better than sitting in."
Her: "What, just me with you and your mate? Imagine it."
Me: "Nah we'll have a laugh and because it's by your flat so you'll be able to go whenever you feel like."
Her: "That's true isn't it? I'm tired though and will probably just go home, I'll let you know."
Me: "Sound, it's up to you."
She goes back to what she's doing, it feels slightly awkward so I leave to get back to work as well. Not mentioned again the rest of the night and I decided not to bring it up again.
Told my mate this and he was like "Lad, you've not made it clear to her you're interested. She probably just felt confused and said no cause it felt awkward. Now you're agreeing with that.
I should go on Take Me Out and have Paddy McGuinness help me out.