What do Du do when Du sit Weiter to your crush?

Act like its nothing and just talk to him like its one of your other Friends but still be flirty

I always smile, laugh, and joke! Never am I shy, because how can he know the real me if I don't act like the real me? I usually don't talk any different to him than any of my other friends, except for maybe a casual hand touch oder a special compliment. And of course in this case, there is always room for your fun and flirtatious spirit! Shine through!