After church fellowship at restaurants, Bible bingo! Games.. several things.. Each church varies..
Worship has always been the one central church activity, even though greatly corrupted in certain situations by the introduction of pagan rituals, it remains important to all who wish to worship 'in Spirit and in truth'.
Secondly, for those who truly love the God of the Bible, His word is precious above the words of men. Thus although this word needs to be faithfully proclaimed as part of Christian worship, it is also the subject of personal and group study, either organized or informal.
Thirdly, prayer, although a part of corporate worship in a Christian worship context, is often engaged in 'wherever two or three are gathered in my name'. Many churches also have formal mid-week gatherings specifically for prayer, as well as for special needs at other times.
Fourthly, Christians often engage in charitable deeds which can take many forms, in order to help those in need.