How do you become one of the girls who work at pubs/clubs promoting alcohol brands?
Talking to a distributor is a good idea, also many girls work for a promo agency. Ask promo girls, go-go dancers and girls doing beauty promotions/sampling who they work for. Signing with an agency will get you more opportunities to work because they cover many brands as well as in-store events, trade shows etc. I represent several well known brands and used to maintain my own staff but didn’t have enough hours for them, I now use an agency exclusively.