Why would YOU make eye contact with someone for 3 seconds (or longer)?

and I don't mean eye contact for a second or less.. Which is just throwing a glance. I mean looking in someone's eyes for at least 3 seconds or over. What would your reason be? Vote!

(actually just asking out if curiosity since someone was ''watching'' me today lol)
I will only make eye contact for a few seconds with someone I find someone (really) attractive
I will only make eye contact for a few seconds to test someone's reaction
I don't do creepy shi like that
Select gender and age to cast your vote:
Why would YOU make eye contact with someone for 3 seconds (or longer)?
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