Conversation and welcome
Depending on the venue, the work may involve welcoming guests and conversation at tables. Ask how areas are assigned and what a typical shift includes. The same job title in two advertisements does not prove that the duties or expectations are identical.
Distinguish other activities
Hostess, bar staff and dancer are separate roles. A hostess offer should not be treated as automatic agreement to performances or other activities. State what you are looking for and ask that the required tasks be clear before confirming your availability.
Review the conditions
Duties must be considered alongside pay, hours, breaks and travel. If drink-related bonuses are offered, ask how they are counted and clarify non-alcoholic options. A complete description helps you judge compatibility with your needs; it is more informative than a promise that the work is easy.