print some business cards and laminate them as they will last longer in the draw, expect to wait around 6 months for your cards to circulate and word of mouth to back them up before you start getting calls.
you can advertise yourself in the thomson local for free which is also online plus microsoft are now doing free comercial webspace and a site designer so set yourself up a page and stick that on your business cards.
next its time to do the whore bit, thats right you didn't read that wrong youv'e got to start selling your body.
in the pubs wilst having a drink with your mates practise with your cards or coins and wait to be asked to show a trick, if youv'e got good mates they can give you some american style reactions to hook genuine customers who will also ask to see a trick, thease you can give your cards to.
same thing for coffee shops, resturants, busses, cabbies and anyware you go just steer clear of phone boxes at the moment your reputations not that good yet.
wile at the local pub ,bar ,resturant ask the boss man / woman if they require someone to do some magic don't mention money , let them broke the subject if there interested, even if there not ask if you can leave them a card just incase someone asks for an entertainer most will be quite happy to take one.
find your target audience be it mothers with kids or business men with fat wallets and give your cards to them, be polite and open with them and persude them its for a future opertunity not a you will buy me now which will put them off.