Some in the community are very against being friends and say to communicate exactly what you want etc. Others irl advise me its okay to be friends, see if there are sparks and worse case scenario you have a friend who can introduce you to others.

Atm was a girl who is a couple inches taller than me, went for a general coffee catchup (was nice but friendly ofc). Just asked her out again but feels weird, with no clear aim. I guess I have nothing to lose. But I probably won't make a move as the vibe is friendly, but is it worth practising flirting etc.? (Especially as my day to day life is male dominated and I am outta practice)

Another point is if you think she will say No, then save face and don't ask. I think this is bad advice and you should ask anyway - would welcome thoughts here.