Giving presents is done for different reasons, and different rules apply. I have always been surprised by my staff in Kurdistan, who brought back presents when away on holiday. I had already seen it with Kurdish friends in Holland: suitcases full of stuff came back that would be presented to family and friends. When I travel with friends, I see them do shopping for friends and family at the airport. Coming back with presents is just not done.

Over the years, during working trips in the Middle East, I have often been offered presents. For journalists these are difficult issues, as you are supposed to remain independent, and how can you if you take people's presents? But in one instance I really found it hard to refuse. I had encountered a nice family, who was part of a problem that I was writing about. We spent some nice time together. They sent me home with a very nice perfume I could not refuse. I did feel a bit uneasy about it though. I make enough money to buy it myself. Why did they want to give it to me? When next time I saw them, they offered to have me some clothes made, but I did manage to refuse and stayed away from them not to feel guilty.
,,Come on'', an Iraqi friend of mine said, ,,they were just being nice. Giving presents also means people show you their respect, don't think too much about it.''
There are also presents that are given for religious reasons. I know people in Iraq who give money to beggars or children selling stuff at the traffic lights because they think they earn a place in heaven that way. And of course by giving the zakat, a percentage of your salary as one of the pillars of Islam, one also applies for a place there. But these gifts have much more to do with the giver than with the receiver. However much the latter may need it.
Related to gifts are the rules about paying when out for a diner. In my homeland Holland we usually share costs after a meal out, unless the meal is for a special occasion. But in Iraq and most of the Middle East you always have to fight to be able to pay a bill. Usually the rule is that when you are visiting - outside town or outside the country - you are the guest. Meaning that when the return visit comes, you will be able to pay. Sure, you might be able to, but never without a fight, for politeness sake.
This might be because I am a woman, but I do not think so. As female friends do the same to me, and I may be able to pay for a man every now and again. So it is just part of the culture of hospitality. Yet it results in a fight over the bill that does not really make me happy.
In Iraqi Kurdistan there is still another rule one has to apply. Politeness forces people to decline when offered something, even though they want it and need it. You may have to offer money, service or food two and usually three times. If people still refuse your third offer, they usually really do not want it. The best way to be sure is to say in this last instance: ,,Look, this is yours, you have to have it. I do not take no for an answer.''
And then, the rules when receiving a gift. In my home country, you unwrap and admire. In the Middle East, you accept without unwrapping, saying many thanks. Next time you meet someone, you should tell him you really liked the present.
Gifts may also be given to authorities to get something in return. Even though in many countries it is considered as corruption, in Iraq it has become almost a rule. Gifts can be handed in cash, or in free services (fill up the car, get a night in a hotel, do not pay for your shopping, etcetera). Though of course the giving should be done too openly, without the gifts, there is no service or limited service. Which means people pay, and civil servants have gotten used to getting the extras on top of their salary.
In my own country we had scandals because of builders buying orders with trips and other gifts. In the Middle East this is just about the norm, however many of these countries are now said to be working to fight this. There are stories about the members of some anti-corruption committees who use the job to receive extra money. And there are stories about members who do try very hard to fight corruption, and then get accused of some crime because their actions are too painful for the pockets of some influential people.
Presents are of all types and of all times. To show your love, your respect or the make things go more smoothly. And we Westerners may not like the last category, yet for the moment the fight against it is not going anywhere. Bakshish is a very old word, and very much part of the culture. One cannot erase a habit of centuries in just a few years.