Well, assuming you're playing a Noldo of the Third Age, I would say he or she should be inclined toward technology (from the Elvish point-of-view -- this does include making gizmos and things, but more magically derived than mechanically so). A Noldo would have a certain pride, but the arrogance of the Noldor should be in their past. By the time the War of the Last Alliance is over the Noldor seem to have overcome the arrogance which led them into rebellion in the first place.

The Noldor would be friendlier toward Dwarves than other Elves (and by that I don't mean other Elves should hate Dwarves -- such attitudes were quite rare in Tolkien despite the traditions which have grown up in fandom), and probably the Noldor would be friendlier toward other peoples and creatures than other Elves, too.

A Noldo would not think so much of the Sea itself (they were not really seafarers) as what lies over Sea. His or her goal is to enjoy Middle-earth for as long as possible before making the inevitable (and irrevocable) departure over Sea. That choice should come only when it seems like there is no further delight to be found in Middle-earth.

The Noldor would be more inclined (in the Third Age) to "bask in the glow" of past achievements than to attempt anything new on a grand scale. That doesn't mean they would not get involved in Mortal affairs. Rather, they are trying to be a part of Middle-earth, to prevent the world from changing, and thus would be very reluctant to upset the status quo as long as there is a semblance of peace and safety for themselves and their friends.

In matters of commerce we tend to walk on thin ice. Should an immortal Elf want to accumulate wealth? I've had some long (and not entirely conclusive) discussions about this with some MERP writers. We tend to agree that the Elves did have a sense of wealth, but they may not have wanted MONEY so much as they would want other types of wealth -- rare items, rare knowlegdge. A Noldo might not be so much interested in making a profit in any exchange as increasing the value of what he or she possesses already, or perhaps acquiring something new and unique. But it's a tough call.

The Noldor were innovators but their innovations seem to have been aiming toward achieving a level of idealized satisfaction. Once they had satisfied their minimal requirements (for food, housing, whatever), then they probbaly turned their minds to more intellectual pursuits: perfecting their "arts", achieving a high sense of the aesthetic, molding the world around them to better fit their personal likes and dislikes.

Noldor were also city dwellers. I think this fact gets lost amid the flurry of Elven encounters in the woods. A Noldo can handle woodland life as well as any Elf, but they built cities and fortresses and towers. They were workers of stone, miners, smiths -- technologists, in Tolkien's own language.

Does that help?

------------------
Parma Endorion: Essays on Middle-earth, Revsied Edition