Look, I'm no expert when it comes to women and signals but if you have to spend more than a few seconds pondering the meaning of that action, I'm guessing you're not getting laid much.
 
	 
 
	o·vert
	
		ōˈvərt,ˈōvərt/
	
	
		
			adjective
		
		
			 
		
		
				
					
						
							
								
									done or shown openly; plainly or readily apparent, not secret or hidden.
								
								
									"an overt act of aggression"
								
								
									
													synonyms:
												
												
													undisguised, unconcealed, plain (to see), clear, apparent, conspicuous, obvious, noticeable, manifest, patent, open, blatant
													
														
															
																"an overt attempt to sidestep the truth"