Depending upon the precise context, some possible descriptors are:
Lying
Hypocrisy
Two-facedness
Dishonesty
Fraudulence
Deceitfulness
When you say one thing is another, it is called a metaphor.
For one thing, there is no such thing. As you say "Baby insects" everyone else is smart enough to know they are called larva
To say one thing and mean another is sarcasm.
Put up posters that say no more bullies
It is called jinx
Probably. but one thing to say if your wondering (: then dont smoke it or do other stuff with it (:
hypocrisy
Usually they will have a circle thing round their foot this will say which year they were born.
This is called reverse psychology, which involves persuading someone to do something by suggesting they do the opposite. It plays on the tendency for humans to resist direct commands.
Miguel - Sure Thing
Well it depends why you want to see her? If you want to see her to "get it in" ofcourse you are not going to mention that, just say you want to hang out. If it is just to hang out you can say the same thing. One other thing girls are pearls for what ever reason you wants to see a girl/women treat her like one. That my advice to you.
One thing, its called Today Is Gonna Be A Great Day. Its by Bowling For Soup