Possible Clues:

• Jabbing rudely
• Attention-getting act
• Jabbing a petty officer with a ruler
• Giving a nudge to pig whose heart is moved by a distressed 'oink'
• Reminding, in a way
• Jabbing petty officer with ruler
• Contacting via Facebook, in a way
• Attacking with jabs is quite acceptable in ring
• Piercing
• Sticking (out)