Teasing

Webster's says:

Tease (v): To irritate with with taunts, mockery, pretended offers, etc., often in sport


Oxford says:

Tease (v): to annoy persistently, pester, tantalize


Dictionary.com says:

1.to irritate or provoke with persistent petty distractions, trifling raillery, or other annoyance, often in sport.
6.to provoke or disturb a person or animal by importunity or persistent petty annoyances.


I say:

Think about that before you say you are just teasing!