Ask the user what's her name
When prompting the user with a question it is probably the best to use the prompt function. Similarly to say it prints to the screen, but without the newline at the end. Then it waits for the user to type in something.
It reads up to the ENTER the user presses, but passes over only the the part before the newline. (Perl 5 users could think about it as having autochomp)
examples/scalars/read_stdin.p6#!/usr/bin/env perl6
use v6;
my $name = prompt("Please type in yourname: ");
say "Hello $name";