Observe Etiquette
Observe the etiquette of giving presents. It is important to care about the kind of present you ill buy for a person and the kind of the present depends on the character of your relationships and on the character of a person and so on and so forth. Those are common factors for people to bother about when they choose the presents.
Though, it is not just a present that is of great important but also the way you will give this present for a person. First of all the wrap is important. There is no way for you to buy a pen (for example) and to give it to a person with the words "Her, it's for you". It is not actually the way it should be. Wrap it and say some special words.
According to present etiquette it is wrong to give a person a present and waiting for a person to open it in your eyes. You make a person feel embarrassed. You sure realize that you may choose a present that is of no need for a person ad that will make her just a bit pleased with the fact that it is a present. And your presence will make a person feel uncomfortable.
Just give a person a present you wanted to give and leave. Let a person stay alone with that present and say "thank you" after it. It will be better for both: for you and a person you gave your present for.