All the things that people enjoy about a traditional Jewish wedding – including chuppah, Ketubah, Hebrew songs, traditional Hebrew phrases, breaking of glass and drinking of wine – are all also key parts of a Liberal Jewish wedding.
The main distinction is that a Liberal wedding is fully egalitarian, meaning that both participants – whether of the same or opposite genders – say and commit themselves to the same ritual Jewish phrases and they exchange rings.
In an Orthodox wedding, typically only the groom gives the bride a ring and she does not speak. An Orthodox synagogue would also not marry a couple of the same gender.