You might be an ISFJ if...
You follow the instructions exactly.
-theisfj

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You might be an ISFJ if...
You follow the instructions exactly.
-theisfj
[ISFJs] fear no one cares enough to protect the things they love
Calise Sellers, on alittlebitofpersonality.com/type-heroes-isfj-knight
You might be an ISFJ if…
you don’t leave your work post, even taking a few minutes after the hour, until everything it’s clean and tidy.
-shinji285
If you are one of those people who absolutely has to convince everyone of your point of view you will not get along with ISFJ’s.
Poetic Justice on www.infjs.com/forums
You might be an ISFJ if...
you're 20 minutes late for your next activity, the bank teller is apologizing for the time she's taking, and you wonder what she has to apologize for because obviously she's going as fast as she can.
-theisfj
You might be an ISFJ if...
you feel like a big risk-taker when you leave a candle unattended to briefly visit the next room.
-theisfj
ISFJ STRENGTHS
(Image source: x)
Supportive - ISFJs are the universal helpers, sharing their knowledge, experience, time and energy with anyone who needs it, and all the more so with friends and family. People with this personality type strive for win-win situations, choosing empathy over judgment whenever possible.
Reliable and Patient - Rather than offering sporadic, excited rushes that leave things half finished, ISFJs are meticulous and careful, taking a steady approach and bending with the needs of the situation just enough to accomplish their end goals. ISFJs not only ensure that things are done to the highest standard, but often go well beyond what is required.
Imaginative and Observant - ISFJs are very imaginative, and use this quality as an accessory to empathy, observing others' emotional states and seeing things from their perspective. With their feet firmly planted on the ground, it is a very practical imagination, though they do find things quite fascinating and inspiring.
Enthusiastic - When the goal is right, ISFJs take all this support, reliability and imagination and apply it to something they believe will make a difference in people's lives - whether fighting poverty with a global initiative or simply making a customer's day.
Loyal and Hard-Working - Given a little time, this enthusiasm grows into loyalty - ISFJ personalities often form an emotional attachment to the ideas and organizations they've dedicated themselves to. Anything short of meeting their obligations with good, hard work fails their own expectations.
Good Practical Skills - The best part is, ISFJs have the practical sense to actually do something with all this altruism. If mundane, routine tasks are what need to be done, ISFJs can see the beauty and harmony that they create, because they know that it helps them to care for their friends, family, and anyone else who needs it.
-http://www.16personalities.com/isfj-strengths-and-weaknesses
My edit.