All the methods I know failed. My count is 7 strokes, but may be wrong. I think the key is the bottom part, but no radical matches its shape.
The rest of the word, including particle, is: きながらでも
The full sentence is: パンなんか [?]きながらでも 食{た}べられるでしょー!
I tried to stroke the kanji here http://kanji.sljfaq.org/draw.html with no success.