Apart from theology, the biggest difference between denominations is style of liturgy. You won't be surprised to know it varies a lot between individual communities, but some generalizations:
Orthodox services are typically pretty informal in style. Any adult man who can read Hebrew can lead the prayers, rabbis are only used for special occasions and possibly for giving the sermon. People follow along at more or less their own pace; in some places the leader keeps the congregation approximately together at least for the important things, in others it really is total anarchy and nobody pays any attention to the guy who's supposed to be setting the pace. The service is exactly the same every week, and almost entirely in Hebrew (in Britain, the sermon is usually given in English these days, and there are one or two English prayers eg the prayer for Queen and Country). The leader kind of chant-mumbles the prayers at a pretty fast pace.
Masorti services are similar, but as a broad generalization, there tends to be a bit more communal singing and a bit more overt structure rather than literally just everybody doing their own thing. In the UK the words of the liturgy are nearly exactly identical between Orthodox and Masorti.
Reform services are formal. Traditionally, though this is dying out a bit, they are directly modelled on high church Anglican services, sometimes even with an organ and choir and stuff. There is lots of ceremony, people are expected to arrive on time and pay attention to every part of the service. Chatting during the boring bits is very much frowned upon! The service is led either by the rabbi or by someone with considerable experience / training, partly because the general structure is the same every week but the leader is supposed to vary things to make it topical and fresh every time, and that takes more training than just reading through the set prayers from the first page to the last. The prayers are in a mixture of Hebrew and English, and there is a lot of importance placed on rituals around venerating the Torah scrolls.
Liberal services historically used to be entirely in English, and with minimal visible ritual stuff. The structure was almost entirely up to the rabbi and could be very different week to week. Nowadays Liberal services and Reform services are pretty similar; Reform has got less starchy and formal and Liberal has got more attached to recognizable traditional rituals. So in both cases you'll get a mixture of Hebrew and English, a standardized prayerbook with the main traditional prayers in though with some variations in wording and some alternative options offered if you want to switch things around. Music may be an organ, or it may be modern instruments like pianos and guitars, there may be unison or part singing.
Denominations
Orthodox services are typically pretty informal in style. Any adult man who can read Hebrew can lead the prayers, rabbis are only used for special occasions and possibly for giving the sermon. People follow along at more or less their own pace; in some places the leader keeps the congregation approximately together at least for the important things, in others it really is total anarchy and nobody pays any attention to the guy who's supposed to be setting the pace. The service is exactly the same every week, and almost entirely in Hebrew (in Britain, the sermon is usually given in English these days, and there are one or two English prayers eg the prayer for Queen and Country). The leader kind of chant-mumbles the prayers at a pretty fast pace.
Masorti services are similar, but as a broad generalization, there tends to be a bit more communal singing and a bit more overt structure rather than literally just everybody doing their own thing. In the UK the words of the liturgy are nearly exactly identical between Orthodox and Masorti.
Reform services are formal. Traditionally, though this is dying out a bit, they are directly modelled on high church Anglican services, sometimes even with an organ and choir and stuff. There is lots of ceremony, people are expected to arrive on time and pay attention to every part of the service. Chatting during the boring bits is very much frowned upon! The service is led either by the rabbi or by someone with considerable experience / training, partly because the general structure is the same every week but the leader is supposed to vary things to make it topical and fresh every time, and that takes more training than just reading through the set prayers from the first page to the last. The prayers are in a mixture of Hebrew and English, and there is a lot of importance placed on rituals around venerating the Torah scrolls.
Liberal services historically used to be entirely in English, and with minimal visible ritual stuff. The structure was almost entirely up to the rabbi and could be very different week to week. Nowadays Liberal services and Reform services are pretty similar; Reform has got less starchy and formal and Liberal has got more attached to recognizable traditional rituals. So in both cases you'll get a mixture of Hebrew and English, a standardized prayerbook with the main traditional prayers in though with some variations in wording and some alternative options offered if you want to switch things around. Music may be an organ, or it may be modern instruments like pianos and guitars, there may be unison or part singing.