You walk across the pub to an empty table and sit down.  The table is sticky and there is a smell of stale beer.  On the table in front of you there is a full ashtray and an empty packet of crisps.  a scraggy dog looks up at you and wags its tail.  After a couple of minutes you realise that the people behind the bar are ignoring you.  What do you do?

Clap your hands and whistle at them

Shout " Excuse me, could I get served here?"

Get up and go to the bar