Choices:
(i) Don't show off your locus (skin, hair/nail color, etc. )-who cares what others think? - Get fit.
(ii) Don't be offensive, give the guy/girl some pointers. Smile at him/her! Well, act happy.
(iii) Instead, make a fun face, get the boy/girl crush, have just ten minutes to talk to him/her, or two hour to an hour. Don't let this become over time or create a feeling that the boy/girl falls for you! Know your strengths and weaknesses.
(iv) If he/she asks you a question answer it and be polite. Ask open questions such as' how was your day? ' ' what are you doing tonight? ' and' what are you up to? '.Choose from options above and answer: What most naturally follows?

How to look appealing in front of your crush
Be cool.
Don't be loud or annoying, you want a good impression on the guy/girl. Don't look like an attention seeker (at/on anywhere e.g facebook, in person etc).
Answer:
(iv)