Approached girl in gym....advice please....
 

Approached her in the gym this morning, spoke briefly about gym stuff....I left her get on with her workout, she said "Nice to meet you" and that was it....so how many (brief) convo's should I have before asking her out? I just don't want to appear too keen....

It's not really a how many conversation thing.

Are you both attracted to each other? If yes, then straight away. If unsure, do it anyway.

She trains at 7am in the week.....I'm off work next Mon so if she is there at that time I will ask her then.