I would wish to understand different types of seduce/attack will have critical value difference or mainly word difference?

For attack, anything marked with a fist symbol is the same type of damage and is merely for roleplay purposes. If you have a weapon equipped, you'll get a sword or a hammer icon. The different icons respresent different damage types that enemies might be weak to (though, it's not fully implemented yet).

For seduction, there are three types of attacks:

 ^ icon means Top-oriented attacks

 ~ icon means Vers-oriented attacks

 v icon means Bottom-oriented attacks

Different enemies respond better to complimentary styles. The outlaws, for instance, are top-oriented, so they'll take more lust damage from bottom-oriented moves. Each enemy also has one seduction-based move that hits harder than all the others, but I won't give those ones away :P