A	person's	computer	keyboard	can	tell	you	quite	a	bit. 	How	worn	the	keys	are collectively	can	tell	you	how	long	they've	had	it. 	Different	countries	have different	 keyboards	(for	example,	instead	of	QWERTY,	it	would	be	AZERTY	in French). 	Certain	languages	also	use	certain	keys	infrequently	(for	example,	the letter	K	is	seldom	used	in	French). 	 A	mouse	on	the	right	side	of	a	keyboard	does	not	automatically	imply	a	right-handed	person. 	Many	left	handed	people	have	grown	accustomed	to	using	the mouse	with	their	right	hand. 	 Look	at	a	person's	desk	for	signs	of	a	right	or	left	handed	person. 	If	a	person's utensil	cup,	computer	mouse,	trash	bin,	and	other	such	working	utensils	are	on the	right	side	of	their	desk,	the	likelihood	of	right-handedness	is	great. 	 Inspirational	posters	and	other	forms	of	self-motivation	or	self-affirmation	are generally	used	more	often	by	people	who	are	high	on	neuroticism	and	are	more anxious. 	 	 OUTSIDE 	 A	person's	front	yard	is	a	chance	to	display	to	the	public	what	they	like	about themselves,	especially	more	so	than	a	back	yard,	which	can	be	more	private	and intimate. 	Look	for	things	that	may	have	been	set	up	deliberately	in	each	yard, like	flags,	plants,	and	so	on. 	Remember	the	difference	between	items	meant	for outward	display	or	inward	symbols. 	 If	a	person's	footprints	are	deeper	around	the	toes	and	are	farther	apart,	that person	was	running. 	 If	a	person's	footprints	are	deeper	than	usual,	they	may	have	been	carrying something	heavy. 	 Be	aware	that	the	length	of	a	person's	stride	is	not	the	best	tool	for	estimating	a person's	height. 	Over	and	over,	scientists	have	tried	coming	up	with	a	formula