Apologies for got the tips angle it will be just the same for you as for anyone else working out around £6 per day [$10] covering the cabin attendant and his assistant and the same in the diningroom, plus the head waiter and you will get the envelopes to hand out on the last night either with the cash in them or you could ask them to put it on your seapass account. If you have exceptional service you might want to reward someone much more but that is at your dicretion, One other issue and being single and going ashore to do trips on your own; if you have been to the area before OK but if it is new to you worthwhile trying to get in with a group who are going to do their own thing rather than book a trip via the cruise reps. The word of warning if a coach is delayed getting back to the ship it must wait but if you as an individual are late is doesn't and its your problem of getting to the next port to get back on the ship again.
They will have get togethers for all the singles which you may find great fun but if not the size of the ship is smaller and you will certainly make friends as that is what cruising is all about. We still keep in touch with some people we have met and I am sure you might find the same.
I would write them in a little note book so that you can refer to them before going on another cruise. ... Neil.
One of the friendliest ships going you will be fine sit outside with the smokers they will see you alright, also on the first day you will be invited to an informal get together for all singles, have known people to go cruising again with people they met on their first cruise, enjoy!