If you’re one of the shy ones and you fancy ditching your wallflower stance, Attica’s ‘Lock & Key’ concept may be for you. The first 100 single ladies and dudes to enter will get a matching lock and key, so you’ll have to spend the night hunting down whoever’s got your other half. Not bad for an entertaining ice-breaker. The first three pairs to succeed can celebrate with a free bottle of Moet champagne, and single ladies who arrive in groups of four or more get to enjoy a tray of V-day shots.