Grill, patio, cokes and margueritas

[lrcjestes at earthlink.net]

OK I need some brit-speak assisstance.

I'm describing cooking steaks on a grill on an outdoor patio.  Would 
you use differnt words than grill and patio if you lived in great 
britain?

Also what is the vernacular for coke, soda, pop...whatever you call 
that brown fizzy drink?

Finally I need common tropical drink...marguerita? Daquiri?  Mai tai? 
Something you'd associate with longing on a beach somewhere.

Thank you for any help...

carole