It is typical for guests at an engagement party to create a small gift. This is usually not something expensive and it is more thoughtful than anything. If you know the pair well or are a family member, you might want to give them something meaningful.Here

If you're attending a casual engagement party, like a beach celebration or perhaps a simple and laid-back backyard gathering, it may be acceptable to put on jeans along with a smart shirt. That said unless you're certain that the gown code is extremely, very casual, it is best to overdress instead of underdressing.

An engagement party isn't like a marriage where you're required to create a gift, especially not a monetary one. Most people do bring something promising small to these events, but it's often something simple or sentimental. If you would like to understand how much to invest in the gift or would rather write a card with money, the typical is around $50.

Unlike at a wedding, an engagement cake isn't a significant part of the party. You can offer other desserts, and when you want, you might serve a unique cake, but this isn't the norm.

You do not have to create a gift to have an engagement party, but, depending on how close you're to the pair, a card and something promising small to show your support of the relationship is going to be appreciated. You could also bring them a box of chocolates and flowers. Unlike a marriage, there shouldn't be an expectation to have an engagement gift.

Unless the pair has asked you not to put on white, it's perfectly acceptable to put on this color for an engagement party, but do not opt for something that resembles a plus size cocktail. It is typical for the engaged pair to put on white at their party, though, so you might want to avoid this hue.