They can get on your nerves but if you give a firm 'no', it tends to do the trick. If you waiver a bit, tho, you've had it lol

The beggars asking for money, I used to hand them a bottle of water or something. If they are genuinely hungry or thirsty, they will be grateful

Personally we prefer the sellers and workers to have a chat to, rather than the actual Goan's. The hotels, restaurants and shacks are only owned by Goans and they are very hard task masters, they pay very poorly and don't treat their staff well at all. Very few Goans actually work, they do own or drive taxi's, but they are usually the 'boss'. The workers from other states do all the menial jobs and sell on the beaches. I like them as a rule.
We never give to beggars or children gyrating for tourists on the beaches, but do give to genuine disabled people. Very little can improve their quality of life, but a little money must help.

We never, ever, promise to buy another day unless we genuinely intend to. I tell the beach sellers we are going to Mapusa to buy our souvenirs, and we do. They know we will get the same stuff there much cheaper so don't try to compete. If however, they do have something that catches my eye, and this is often the case,I will offer what it is worth to me. If they want more, I tell them to find someone else to buy it, as I won't.To have the shop come to you and save you getting a bus or taxi to go shopping may cost a little more, but it's worth it sometimes and less hassle.
If they agree to my offer, I always purchase the item.

I would never allow a shack worker to massage me with his/her dirty old rag and coconut oil, any more than I would if a local bloke from the pub, offerered to in the UK!!

They all work hard, in unbearably hot and uncomfortable conditions, to ensure they have enough to last through the closed tourist season, and are much more pleasant than their counterparts in Turkey or Egypt who are quite aggressive with their sales pitch.Their friendliness and cheeky wit earns the Indian sellers much more in sales and in tips, and deservedly so IMO.
They are part of the Goan scene and I would miss them if they were to totally dissappear.

Totally agree with the above post! We really would miss them if the sellers weren't there. We love listening to their stories and the little bits and bob are very handy for secret santas around christmas time!

we really enjoyed our trip to goa but i agree that the beach sellers are annoying,if you pretend to be asleep they shake you so you wake up,lol after a few times repeating no thank you they will go away,shop sellars,you can walk away, the best laugh was in anjuna market,we were sat having a coffee [ ] my o/h had his back to the walkway and a little girl came up and said you want this mr,he said no thank you and looked away,she stood for 10 mins punching him in the arm because he wouldn,t take any more notice of her repeated ,please mr.please mr...would this stop us going to goa, no of course not , you,ll get it where ever you go.

Oh now Anjuna market is another story. There, they are almost on a par with the Turks and Egyptians. They can be really quite aggressive and think nothing of actually physically pulling you to go to their stall.
We never do Anjuna these days anyway, too hot, too pricey, and hectic. However first timers should go I think, as it is a tourist attraction in it's own way I suppose.