Primarily, Christians worship in churches on Sundays.
Christians worship on Sunday, the first day of the week. Synagogues are normally open on the Sabbath or seventh day of the week (between sunset Friday and sunset Saturday). Most Christians would not worship in a synagogue.
A holy day for rest and worship is Friday for the Muslims, Saturday for the Jews and Sunday for the Christians
I say Easter, as Jesus Christ rose from the dead.
The Liturgy of the Hours
Christians do not worship using a mat.
Christians worship God. We often worship with our hands up in the air in worship towards God.
Christians worship everywhere. "other" Christians worship in Isreal, or Nazareth, or Bethlehem.... but Christians still worship everywhere
Christians believe him to be God and therefore worship him as God.
Muslims go to Mosques and Christians go to churches.
Because christians believe that Sunday was the day of rest and prayer so it's seen as a holy day and so that is the main day when christians have special services on Sundays.see link " How Sunday Became the Popular Day of Worship"
True Christians only worship Jesus, nothing else.
Sunday worship will never be for everyone. We know that for Jews the Sabbath can only be on Saturday. Muslims must perform their main worship on Fridays. Similarly, we can not expect Buddhists or Daoists to have a special worship day on Sundays, although the fact that Sundays are usually work-free days at least makes Sunday worship convenient. Atheists do not worship, so they would be exempt from any requirement to worship on Sundays.If we can not require non-Christians to worship on Sundays, why should we expect Christians, for whom Saturdays are the day of worship, to worship on Sundays?