Wave, blow a kiss, do something... and don't take random girls on the street too seriously.

A couple of weeks ago, this really hot blonde at a bar was totally eyeballing me for ages but I lacked the balls to chat her up with literally all the boys and girls watching. Just forget about the bullshit and move on (my excuse is it was my friend's last night in the country so am I going to be chatting up this hot chick or getting smashed with him?).